Encycolorpedia

#ffe630 Codice Colore Hex

#ffe630 Paint ChipIl codice colore esadecimale #ffe630 è una sfumatura di giallo. Nel modello di colori RGB #ffe630 è composto di 100% rosso, 90.2% verde e 18.82% blu. Nel sistema di colori HSL #ffe630 ha una tonalità di 53° (gradi), 100% di saturazione e chiarezza del 59%. Il colore ha una lunghezza d'onda approssimativa di 573.68 nm.

Variazioni di colore

Nomi colori correlati

Combinazioni di colori

Scaricare: GIMP GPL Adobe ASE (Adobe Swatch Exchange) Sketch Palette

#ffe630 gradiente lineare al complementare #30e7ff

  1. #ffe630
  2. #efe65f
  3. #dce683
  4. #c6e6a3
  5. #aae6c2
  6. #82e7e1
  7. #30e7ff

Colori monocromatici

  1. #ceba00
  2. #dec800
  3. #efd719
  4. #ffe630
  5. #fff542
  6. #ffff53
  7. #ffff63

Toni di colore

  1. #ffe630
  2. #f0d84c
  3. #e0cb60
  4. #cfbe70
  5. #beb17e
  6. #aca48c
  7. #989898

Tinte e sfumature

#ffe630 al nero

  1. #ffe630
  2. #ffea5d
  3. #ffee81
  4. #fff2a1
  5. #fff6c1
  6. #fffae0
  7. #ffffff

#ffe630 al bianco

  1. #ffe630
  2. #d0bc2c
  3. #a39328
  4. #786c22
  5. #50481b
  6. #2a2612
  7. #000000

Vernici

Pitture simili

  1. Natural Color System / NCS

    1. ★ S 0560-G90Y
      #ffe72d
      ΔE = 0.385 / LRV ≈ 78.6%
    2. ★ S 0570-G80Y
      #f8e515
      ΔE = 1.728 / LRV ≈ 76.1%
  2. California Paints

    1. ★ DE 5404 - Highlighter
      #ffe536
      ΔE = 0.506 / LRV ≈ 77.6%
  3. Dunn-Edwards

    1. ★ Highlighter / 2933
      #ffe536
      ΔE = 0.506 / LRV ≈ 77.6%
  4. Valspar Paint

    1. ★ Summer Gold
      #ffe831
      ΔE = 0.663 / LRV ≈ 79.2%
    2. ★ Gala Gold
      #ffe94e
      ΔE = 2.095 / LRV ≈ 80.1%
  5. Volkswagen

    1. ★ Saturn Yellow
      #fde522
      ΔE = 0.765 / LRV ≈ 77.0%
  6. Pantone / PMS

    1. ★ 107 CP
      #fde724
      ΔE = 0.841 / LRV ≈ 78.2%
    2. ★ P 1-8 U
      #ffea2e
      ΔE = 1.348 / LRV ≈ 80.3%
  7. Ford

    1. ★ Pastel Rattan
      #fee83a
      ΔE = 0.897 / LRV ≈ 79.1%
    2. ★ Yellow
      #fae333
      ΔE = 1.291 / LRV ≈ 75.5%
  8. Resene

    1. ★ Shooting Star G90-165-091
      #fde336
      ΔE = 1.089 / LRV ≈ 76.1%
    2. Paris Daisy G92-140-093
      #fbeb50
      ΔE = 2.813 / LRV ≈ 80.5%
  9. Caparol

    1. ★ 75 74 74 / Laser 40
      #fce824
      ΔE = 1.190 / LRV ≈ 78.5%
    2. 75 60 80 / Palazzo 320
      #fce850
      ΔE = 2.302 / LRV ≈ 79.0%
  10. Plascon

    1. ★ Basket of Gold Y1-A1-1
      #fce83c
      ΔE = 1.206 / LRV ≈ 78.7%
  11. Chrysler

    1. ★ Yellow
      #fee502
      ΔE = 1.461 / LRV ≈ 77.1%
    2. ★ Bright Yellow
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  12. Tamiya

    1. ★ Tamiya 80008,X8
      #fde601
      ΔE = 1.517 / LRV ≈ 77.5%
    2. ★ Tamiya 85310, MS-10
      #f8e618
      ΔE = 1.732 / LRV ≈ 76.6%
  13. Focoltone

    1. ★ 7002
      #fde600
      ΔE = 1.533 / LRV ≈ 77.5%
    2. 1072
      #ffed00
      ΔE = 2.861 / LRV ≈ 81.8%
  14. Vallejo Game Color

    1. ★ Sunblast Yellow (006)
      #ffe700
      ΔE = 1.558 / LRV ≈ 78.4%
  15. Reaper Master

    1. ★ Sun Yellow (9008)
      #ffe700
      ΔE = 1.558 / LRV ≈ 78.4%
  16. Vallejo Model Color

    1. ★ Flat Yellow (953)
      #ffe700
      ΔE = 1.558 / LRV ≈ 78.4%
  17. Rackham

    1. ★ Lahn Yellow (40)
      #ffe700
      ΔE = 1.558 / LRV ≈ 78.4%
  18. Old Citadel

    1. ★ Sunburst Yellow
      #ffe700
      ΔE = 1.558 / LRV ≈ 78.4%
  19. Taubmans

    1. ★ Hi-C Yellow / T08 2-4
      #ffe400
      ΔE = 1.572 / LRV ≈ 76.8%
  20. Little Greene

    1. ★ Trumpet
      #fbe601
      ΔE = 1.663 / LRV ≈ 77.1%
  21. TRUMATCH

    1. ★ 12-a1
      #fbe400
      ΔE = 1.678 / LRV ≈ 76.0%
    2. ★ 13-a
      #fbe900
      ΔE = 2.105 / LRV ≈ 78.8%
  22. GM / General Motors

    1. ★ Bright Yellow
      #ffea17
      ΔE = 1.762 / LRV ≈ 80.2%
    2. Panama Yellow
      #fbed35
      ΔE = 2.646 / LRV ≈ 81.3%
  23. Scib Paints

    1. ★ Rajah Gold / 7862
      #ffe449
      ΔE = 1.839 / LRV ≈ 77.2%
  24. Berger

    1. ★ Rajah Gold / 7862
      #ffe449
      ΔE = 1.839 / LRV ≈ 77.2%
  25. Vista Paint

    1. ★ Rajah Gold
      #ffe449
      ΔE = 1.839 / LRV ≈ 77.2%
  26. Mercedes

    1. ★ Abachigelb / 1203
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  27. MVS

    1. ★ Jaune Sandha / 200079
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  28. Faw Xiali

    1. ★ Lemon Yellow / 575
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  29. Lotus

    1. ★ Safron Yellow / B106
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  30. Mazda

    1. ★ Almond Yellow / YV
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  31. Kavo

    1. ★ Schwefelgelb Matt / 116
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  32. Aston Martin

    1. ★ Ferrari Yellow / R2839
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  33. Innocenti

    1. ★ Panna / 126
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  34. Goggomobil

    1. ★ Canarigelb / 233
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  35. Peugeot

    1. ★ Beige / 1045
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  36. FSO

    1. ★ Giallo Postiano / 208
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  37. Bugatti

    1. ★ Bugatti Giallo 108C / GAT11427
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  38. Holden

    1. ★ Absinth Yellow / 1D008
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  39. Tata

    1. ★ Crescent Yellow / 159
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  40. Kaessbohrer

    1. ★ Gelb / 1148
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  41. Willys

    1. ★ Autumn Yellow / P5
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  42. Alfa Romeo

    1. ★ Avorio Indiano / 106
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  43. Magirus

    1. ★ Gelb / 11
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  44. Color Truck System

    1. ★ 1*048 / 1*048
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  45. ARO

    1. ★ Gris Beige / 100
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  46. Mack

    1. ★ Bright Yellow / P3308
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  47. Perodua

    1. ★ Kenari Yellow / Y01
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  48. Wolseley

    1. ★ Barley Yellow / FCE
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  49. Daewoo

    1. ★ Lemon Yellow / 54U
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  50. Fisker

    1. ★ Amarelo Interlagos / FI-488/B
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  51. Fiat

    1. ★ Jaune / 84
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  52. Vauxhall

    1. ★ Brilliant Yellow / 54L
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  53. Zastava

    1. ★ Orange Gelb / 4109
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  54. Kenworth USA

    1. ★ Dark Yellow / N0648
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  55. Daihatsu

    1. ★ Canyon Yellow / 136
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  56. Studebaker

    1. ★ Bamboo Yellow / 5924
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  57. Honda

    1. ★ Sunflower Yellow / 92938
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  58. UNKNOWN

    1. ★ Malaguti Giallo Phantom
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  59. Hummer

    1. ★ Yellow / WA5456
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  60. Mahindra

    1. ★ Yellow / 1100
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  61. Setra Evo

    1. ★ Antik Kuerbisgelb / EVO 1102
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  62. LDV

    1. ★ Yellow / 02C
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  63. Talbot

    1. ★ Beige Henares / 241
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  64. Volvo

    1. ★ Bamboo Yellow / 91206
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  65. BMW

    1. ★ Arizona Sun Matt / 10069
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  66. Wartburg

    1. ★ Panamagelb / 106
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  67. Moskvitch

    1. ★ Hellbeige / 108
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  68. Panther

    1. ★ Yellow / GL11
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  69. BYD Auto

    1. ★ Brazil Yellow / Y-01
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  70. Ssangyong

    1. ★ Special Yellow / YAB
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  71. Hanomag

    1. ★ Sonnengelb / 2032
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  72. Morgan

    1. ★ Yellow / 13231
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  73. Fleet

    1. ★ Boney Trans Yellow / GAF5285
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  74. SMA

    1. ★ Sheer Yellow / 310
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  75. Trabant

    1. ★ Sommergelb / 0250
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  76. Suzuki

    1. ★ Alfred Yellow / 276
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  77. Maxitrans

    1. ★ Absynth Yellow / GAF3007
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  78. Matra

    1. ★ Jaune Tilleul / 506
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  79. Iveco

    1. ★ Amarillo / S-52/78197
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  80. Ferrari

    1. ★ Giallo Modena / 229211
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  81. Isuzu

    1. ★ Dandelion Yellow / 2091-P1
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  82. Chang´an Suzuki

    1. ★ Xingyun Yellow / EH
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  83. Lada

    1. ★ Beige / 266
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  84. Jaguar

    1. ★ Barley Yellow / FCE
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  85. Man

    1. ★ Heliosgelb / 1905
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  86. Lamborghini

    1. ★ Giallo Midas / F2003-0267
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  87. Dacia

    1. ★ Gelb Verzul / 452
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  88. HKS

    1. ★ 2K
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  89. Saab

    1. ★ Gul / Y4
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  90. Wanderer

    1. ★ Sandgelb / 252
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  91. Afnor

    1. ★ Jaune Orange Vif / 1310
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  92. Borgward

    1. ★ Jamaika Gelb / 136
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  93. Berliet

    1. ★ Jaune Electron / B035
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  94. Liebherr

    1. ★ Bambusgelb / VWLH1B
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  95. ZAZ

    1. ★ Gelb / 225
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  96. Fleetmark

    1. ★ Toll Yellow / GAF9620
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  97. Renault

    1. ★ Beige / 1116
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  98. Ski-Doo

    1. ★ Cream Mat / 5812-92-08
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  99. Porsche

    1. ★ Alabaster / 528
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  100. Seat

    1. ★ Amarillo Zinc / 118
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  101. Proton

    1. ★ Royal Yellow / Y78
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  102. Subaru

    1. ★ Bub Yellow / 50
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  103. Dr

    1. ★ Lemon Yellow Solid / EF
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  104. Saviem

    1. ★ Blanc Safran / 041
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  105. TVR

    1. ★ Speed Yellow / R2738
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  106. Opel

    1. ★ Adac Gelb / 644
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  107. Schmitz Cargobull

    1. ★ Narzissengelb / RAL1007
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  108. Maserati

    1. ★ Nuovo Giallo Fly / 20Y490
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  109. Scania

    1. ★ Beige / 1001
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  110. UMM

    1. ★ Beige / 499
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  111. Geely

    1. ★ Kaiser Yellow / 318
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  112. Mack Truck Australia

    1. ★ Bp Yellow / 5S013
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  113. Rolls Royce

    1. ★ Buttercup / 9520145
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  114. Heinkel

    1. ★ Saharagelb / 43
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  115. International Harvister

    1. ★ Bright Yellow / 4154
      #fce903
      ΔE = 1.981 / LRV ≈ 79.0%
  116. Opaltone / OMS

    1. ★ 5006
      #fceb3e
      ΔE = 2.020 / LRV ≈ 80.5%
    2. 4006
      #fbec40
      ΔE = 2.460 / LRV ≈ 80.9%
  117. Brighto Paints

    1. ★ 1-15-6 The Louvre
      #ffe44d
      ΔE = 2.128 / LRV ≈ 77.3%
  118. Bristol

    1. Hi-C Yellow / P017-W5
      #ffe000
      ΔE = 2.364 / LRV ≈ 74.6%
  119. Porter Paints

    1. Acorn Squash / 112-7
      #ffdf37
      ΔE = 2.438 / LRV ≈ 74.3%
    2. Yellow Sunshine / 111-7
      #ffe455
      ΔE = 2.748 / LRV ≈ 77.4%
  120. PPG Pittsburgh Paints

    1. Acorn Squash / PPG1212-6
      #ffdf38
      ΔE = 2.458 / LRV ≈ 74.3%
    2. Yellow Sunshine 111-7
      #ffe455
      ΔE = 2.748 / LRV ≈ 77.4%
  121. Glidden

    1. Acorn Squash / PPG1212-6
      #ffdf38
      ΔE = 2.458 / LRV ≈ 74.3%
  122. Humbrol

    1. 99 Lemon
      #f4e30d
      ΔE = 2.503 / LRV ≈ 74.2%
  123. Model Master

    1. Model Master 52910
      #f7df29
      ΔE = 2.506 / LRV ≈ 72.7%
  124. Colortrend

    1. 0850
      #ffe24e
      ΔE = 2.582 / LRV ≈ 76.2%
  125. Diamond Vogel

    1. Citron / 0850
      #ffe24e
      ΔE = 2.582 / LRV ≈ 76.2%
  126. Crayola

    1. Golden Yellow
      #ffdf00
      ΔE = 2.630 / LRV ≈ 74.0%
    2. Neon Yellow
      #faed27
      ΔE = 2.823 / LRV ≈ 81.0%
  127. Kelly-Moore

    1. Sunlit Plaza / AC201-Y
      #ffdf3f
      ΔE = 2.647 / LRV ≈ 74.4%
  128. Toyo Ink

    1. CF10201
      #f4e200
      ΔE = 2.668 / LRV ≈ 73.6%
  129. Sigma

    1. Yellow Ocre / FS011
      #f9de36
      ΔE = 2.738 / LRV ≈ 72.7%
    2. Yellow Ocre / S 0560-G90Y
      #fae250
      ΔE = 2.786 / LRV ≈ 75.3%
  130. Benjamin Moore

    1. Bold Yellow / 336
      #ffde3a
      ΔE = 2.833 / LRV ≈ 73.8%

Simulazione daltonismo

Monochromacy

Dichromacy

Tricromazia

#ffe630 Esempi HTML e CSS

#ffe630 primo piano

L’amore è cieco.

<p style="color: #ffe630">…</p>

#ffe630 sfondo

Nulla nuova, buona nuova.

<p style="background-color: #ffe630">…</p>

#ffe630 ombra testo

Non puoi insegnare niente a un uomo.

Galileo Galilei
<p style="text-shadow: 0.1em 0.1em 0.15em #ffe630">…</p>

Grafico di composizione

Spazi dei colori

Decimale
16770608
Binario
11111111, 11100110, 00110000
Esadecimale
#ffe630
LRV
≈ 78.1%
Esagono corto più vicino
#fe3 ΔE = 2.636
RGB
rgb(255, 230, 48)
RGBA
rgba(255, 230, 48, 1.0)
rg cromaticità
r: 0.478, g: 0.432, b: 0.090
RYB
rosso: 0.300%, giallo: 1.000%, blu: 0.188%
Android / android.graphics.Color
-6608 / 0xffffe630
HSL
hsl(53, 100%, 59%)
HSLA
hsla(53, 100%, 59%, 1.0)
HSV / HSB
tonalità: 53° (52.754), saturazione: 81% (0.812), valore: 100% (1.000)
HSP
tonalità: 52.754, saturazione: 81.176%, luminosità percepita: 88.351%
HSLuv (HUSL)
H: 75.447, S: 100.032, L: 90.812
Cubehelix
H: 50.818, S: 2.719, L: 0.853
TSL
T: 1.783, S: 0.235, L: 0.850
CMYK
turchese: 0% (0.000), magenta: 10% (0.098), giallo: 81% (0.812), colore chiave: 0% (0.000)
CMY
turchese: 0% (0.000), magenta: 10% (0.098), giallo: 81% (0.812)
XYZ
X: 70.074, Y: 78.070, Z: 14.174
xyY
x: 0.432, y: 0.481, Y: 78.070
CIELab
L: 90.812, a: -8.705, b: 82.797
CIELuv
L: 90.812, u: 24.223, v: 93.305
CIELCH / LCHab
L: 90.812, C: 83.254, H: 96.002
CIELUV / LCHuv
L: 90.812, C: 96.398, H: 75.447
Hunter-Lab
L: 88.357, a: -13.062, b: 52.339
CIECAM02
J: 87.798, C: 68.088, h: 97.755, Q: 184.608, M: 59.542, s: 56.792, H: 114.281
OSA-UCS
leggerezza: -9.774, giallo: 11.302, verde: 1.637
LMS
L: 82.587, M: 83.307, S: 15.211
YCbCr
Y: 202.159, Cb: 44.402, Cr: 151.897
YCgCo
Y: 190.750, Cg: 39.250, Co: 115.500
YDbDr
Y: 216.727, Db: -253.856, Dr: -72.819
YPbPr
Y: 222.221, Pb: -93.875, Pr: 20.872
xvYCC
Y: 206.849, Cb: 45.537, Cr: 146.335
YIQ
Y: 216.727, I: 73.363, Q: -51.340
YUV
Y: 216.727, U: -83.028, V: 33.577
Sistema Munsell dei Colori
7.5Y 8,5/10 ΔE = 5.143
Colore del marchio
Sprint ΔE = 2.034

Colori casuali

Rosso

Verde

Blu