Encycolorpedia

#94bdbd Codice Colore Hex

#94bdbd Paint ChipIl codice colore esadecimale #94bdbd è una sfumatura medio chiaro di turchese. Nel modello di colori RGB #94bdbd è composto di 58.04% rosso, 74.12% verde e 74.12% blu. Nel sistema di colori HSL #94bdbd ha una tonalità di 180° (gradi), 24% di saturazione e chiarezza del 66%. Il colore ha una lunghezza d'onda approssimativa di 491.41 nm.

Variazioni di colore

Nomi colori correlati

Combinazioni di colori

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

#94bdbd gradiente lineare al complementare #c19092

  1. #94bdbd
  2. #9eb6b6
  3. #a7afae
  4. #aea7a7
  5. #b5a0a0
  6. #bb9899
  7. #c19092

Colori monocromatici

  1. #729a9a
  2. #7da6a6
  3. #89b1b1
  4. #94bdbd
  5. #a0c9c9
  6. #abd5d5
  7. #b7e1e1

Tinte e sfumature

#94bdbd al nero

  1. #94bdbd
  2. #a6c8c8
  3. #b8d3d3
  4. #c9dede
  5. #dbe9e9
  6. #edf4f4
  7. #ffffff / #fff

#94bdbd al bianco

  1. #94bdbd
  2. #7a9b9b
  3. #617a7a
  4. #485a5a
  5. #323d3c
  6. #1c2121
  7. #000000 / #000

Vernici

Pitture simili

  1. Sherwin-Williams

    1. ★ Blithe Blue - 9052
      #90bdbd
      ΔE = 0.816 / LRV ≈ 46.0%
    2. Festoon Aqua - 0019
      #a0bbb8
      ΔE = 3.106 / LRV ≈ 46.5%
  2. Caparol

    1. ★ 80 5 180 / Patina 20
      #94c0c0
      ΔE = 1.080 / LRV ≈ 47.8%
    2. ★ 79 4 177 / Neutral Gruen 3
      #98bcc0
      ΔE = 2.183 / LRV ≈ 46.4%
  3. Taubmans

    1. ★ Kingston Aqua / T10 49E-1
      #8dbcbc
      ΔE = 1.375 / LRV ≈ 45.3%
    2. Lake District / T12 45.D9
      #a1bcc0
      ΔE = 3.628 / LRV ≈ 47.3%
  4. Olympic

    1. ★ Alpine Valley B58-3
      #94c0c2
      ΔE = 1.403 / LRV ≈ 47.9%
    2. Pitter Patter B61-3
      #9dc0ba
      ΔE = 3.204 / LRV ≈ 48.4%
  5. Behr

    1. ★ Lap Pool Blue PPU12-06
      #98bbb9
      ΔE = 1.507 / LRV ≈ 45.7%
    2. Clear Vista PPU13-11
      #a2bec5
      ΔE = 4.684 / LRV ≈ 48.5%
  6. British Standard

    1. ★ BS 2660 BS 7-083 - Ribbon blue
      #8fbbbe
      ΔE = 1.635 / LRV ≈ 45.1%
    2. BS 4800 16 D 41 - Green
      #89c0ba
      ΔE = 3.895 / LRV ≈ 46.6%
  7. Nerolac

    1. ★ Casurina - 4321
      #99c1bf
      ΔE = 1.723 / LRV ≈ 48.7%
    2. Al Fresco - 4329
      #7fc2c5
      ΔE = 4.796 / LRV ≈ 47.1%
  8. Earthpaint

    1. ★ 4-30-3 Shimmering Sea
      #9cbfbd
      ΔE = 1.797 / LRV ≈ 48.0%
    2. 4-31-3 Arctic Sky
      #9cb7b8
      ΔE = 3.163 / LRV ≈ 44.4%
  9. Dutch Boy

    1. ★ Lake Champlain
      #8bbdbe
      ΔE = 1.812 / LRV ≈ 45.6%
    2. Rockets
      #84bdc6
      ΔE = 4.640 / LRV ≈ 45.4%
  10. KILZ

    1. ★ Balmy Waters / D832
      #8ec0c1
      ΔE = 1.829 / LRV ≈ 47.3%
    2. Soothing Eucalyptus / E731
      #84bcb9
      ΔE = 3.523 / LRV ≈ 44.4%
  11. Little Greene

    1. ★ Twist
      #8fb9b7
      ΔE = 1.846 / LRV ≈ 44.0%
  12. Jotun

    1. ★ 5306 / Pirat
      #8ec0c2
      ΔE = 1.945 / LRV ≈ 47.3%
    2. 0129 / Isle Of Sky
      #84bbc2
      ΔE = 4.006 / LRV ≈ 44.3%
  13. Asian Paints

    1. ★ Tidal Wave / 7488
      #92c2c3
      ΔE = 1.979 / LRV ≈ 48.6%
    2. Tanned Green Skin / 9257
      #a5c4c6
      ΔE = 3.982 / LRV ≈ 51.6%
  14. Laura Ashley

    1. ★ 45-2 Hampton Court
      #8fb8ba
      ΔE = 1.993 / LRV ≈ 43.7%
    2. 1214 Glass Green
      #8cc8c8
      ΔE = 4.583 / LRV ≈ 51.1%
  15. Plascon

    1. ★ Crystal Ball G5-E2-3
      #8cb8b8
      ΔE = 2.104 / LRV ≈ 43.3%
    2. Seafoam Mist G6-D2-3
      #90c4c4
      ΔE = 2.823 / LRV ≈ 49.4%
  16. Valspar Paint

    1. ★ Spa Day X121R254D
      #96b9b6
      ΔE = 2.114 / LRV ≈ 44.6%
    2. Warm Breezes X108R204D
      #9cb9bd
      ΔE = 3.266 / LRV ≈ 45.4%
  17. Levis

    1. ★ Kristalblauw
      #98b9bb
      ΔE = 2.118 / LRV ≈ 45.0%
    2. Shady Blue A40
      #a0c6c2
      ΔE = 3.836 / LRV ≈ 51.8%
  18. TRUMATCH

    1. ★ 25-d2
      #8dbdc1
      ΔE = 2.123 / LRV ≈ 45.9%
    2. 26-e3
      #98bec7
      ΔE = 4.301 / LRV ≈ 47.6%
  19. PPG Pittsburgh Paints

    1. ★ Barbadian Chs-56
      #98bbb7
      ΔE = 2.175 / LRV ≈ 45.6%
    2. Alpine Valley 355-4
      #91bfc5
      ΔE = 2.796 / LRV ≈ 47.3%
  20. Colortrend

    1. ★ 0687
      #93c3c4
      ΔE = 2.255 / LRV ≈ 49.2%
    2. Lucinda
      #a4bab6
      ΔE = 4.293 / LRV ≈ 46.4%
  21. Iveco

    1. ★ Azzurro Polare / 360
      #95c3c1
      ΔE = 2.278 / LRV ≈ 49.3%
  22. Coronado Paint

    1. 7473 - Coastal View
      #91c3c3
      ΔE = 2.381 / LRV ≈ 49.0%
    2. 7481 - Teal Twilight
      #9cc1bc
      ΔE = 2.829 / LRV ≈ 48.8%
  23. CIL

    1. Bear Run
      #9ab9bb
      ΔE = 2.410 / LRV ≈ 45.2%
    2. Blue Niche
      #8bb8c0
      ΔE = 4.024 / LRV ≈ 43.6%
  24. Glidden

    1. Frosty Glade / PPG1146-4
      #a0c0bf
      ΔE = 2.463 / LRV ≈ 48.9%
    2. Robins Egg
      #84c3c1
      ΔE = 4.367 / LRV ≈ 47.8%
  25. Sigma

    1. Natural Green / 6034
      #88b9b9
      ΔE = 2.490 / LRV ≈ 43.4%
    2. Cool Blue / S 3010-B30G
      #9cb5b6
      ΔE = 3.799 / LRV ≈ 43.5%
  26. Benjamin Moore

    1. Tranquil Blue / 2051-50
      #95c3c6
      ΔE = 2.510 / LRV ≈ 49.5%
    2. Cape Blue / 1642
      #a2bbc1
      ΔE = 4.612 / LRV ≈ 47.1%
  27. Sico

    1. 6155-41 Paris 1900
      #8eb7ba
      ΔE = 2.514 / LRV ≈ 43.2%
    2. 6162-41 Subaquatic Blue
      #9fb5b2
      ΔE = 4.458 / LRV ≈ 43.6%
  28. Vista Paint

    1. Kentucky Estate
      #92c4c3
      ΔE = 2.687 / LRV ≈ 49.5%
    2. Teal Twilight
      #9ec6c3
      ΔE = 3.522 / LRV ≈ 51.6%
  29. Scib Paints

    1. Kentuky Estate / 7488
      #92c4c3
      ΔE = 2.687 / LRV ≈ 49.5%
    2. Mystic Lake / 8344
      #9fb4b2
      ΔE = 4.634 / LRV ≈ 43.2%
  30. Toyo Ink

    1. CF10667
      #8bb7b5
      ΔE = 2.692 / LRV ≈ 42.7%
    2. CF10662
      #a0b7b0
      ΔE = 5.101 / LRV ≈ 44.5%
  31. Resene

    1. Chi B80-024-211
      #9fbfc2
      ΔE = 2.764 / LRV ≈ 48.5%
    2. Half Kumutoto B80-028-205
      #9cc8ca
      ΔE = 4.005 / LRV ≈ 52.6%
  32. Pantone / PMS

    1. 15-5209 TCX
      #87b9bc
      ΔE = 2.811 / LRV ≈ 43.5%
    2. 5503
      #a8c4c4
      ΔE = 4.299 / LRV ≈ 51.8%
  33. Bristol

    1. Bras D'Or / P132-C3
      #8cbdb8
      ΔE = 2.869 / LRV ≈ 45.4%
    2. Aegean Myt / P133-C3
      #90bdb5
      ΔE = 3.707 / LRV ≈ 45.7%
  34. Tollens

    1. T2027-2
      #a2c1c1
      ΔE = 2.912 / LRV ≈ 49.7%
    2. TF250-3
      #9db9bd
      ΔE = 3.427 / LRV ≈ 45.5%
  35. Evonik-Degussa

    1. 3175P Sailing Water
      #96c0c6
      ΔE = 2.947 / LRV ≈ 48.3%
    2. 3185P Summer House Blues
      #95c3cb
      ΔE = 4.144 / LRV ≈ 49.7%
  36. Mylands of London

    1. Pale Blue
      #8bb8bd
      ΔE = 2.994 / LRV ≈ 43.4%
  37. Duron

    1. Drizzle
      #8cb5b7
      ΔE = 3.020 / LRV ≈ 42.0%
    2. Reflecting Pool
      #7eb6b7
      ΔE = 4.436 / LRV ≈ 41.3%
  38. Brillux

    1. 72.09.12
      #9dc5c3
      ΔE = 3.058 / LRV ≈ 51.0%
    2. 75.15.15
      #8bb8ae
      ΔE = 5.129 / LRV ≈ 42.8%
  39. Natural Color System / NCS

    1. S 2020-B30G
      #84babc
      ΔE = 3.107 / LRV ≈ 43.7%
    2. S 2020-B50G
      #83b6af
      ΔE = 5.069 / LRV ≈ 41.4%
  40. ICI Paints

    1. Silver Springs 70GG 48/133
      #91b9b3
      ΔE = 3.129 / LRV ≈ 44.0%
    2. Salzburg Blue 50BG 51/084
      #a5bbc1
      ΔE = 5.175 / LRV ≈ 47.4%
  41. RAL

    1. RAL 190-6
      #a3c1bf
      ΔE = 3.163 / LRV ≈ 49.7%
    2. RAL 730-3
      #7db8ba
      ΔE = 4.403 / LRV ≈ 42.2%
  42. Devoe Paint

    1. Bear Run / 10BG 46/112
      #9db9b5
      ΔE = 3.244 / LRV ≈ 45.2%
    2. Rococo Blue / 70BG 44/129
      #9ab6bd
      ΔE = 4.732 / LRV ≈ 44.0%
  43. Opaltone / OMS

    1. 5352
      #98b5b6
      ΔE = 3.280 / LRV ≈ 43.1%
    2. 5310
      #90bfb5
      ΔE = 4.606 / LRV ≈ 46.5%
  44. Magnolia Home

    1. Morning Calm / JG-77
      #8fb4b2
      ΔE = 3.324 / LRV ≈ 41.7%
  45. Johnstone's Paint

    1. Blue Shore
      #97c4c9
      ΔE = 3.342 / LRV ≈ 50.3%
  46. Fender

    1. 04 / Daphne Blue
      #98c6c3
      ΔE = 3.347 / LRV ≈ 51.0%
    2. 97 / Tropical Turquoise
      #83bfbd
      ΔE = 3.789 / LRV ≈ 45.8%
  47. Marston & Langinger

    1. Berrisford Blue
      #a3bdbf
      ΔE = 3.423 / LRV ≈ 47.9%
  48. Porter Paints

    1. Colonial Aqua / 455-4
      #a0bcc0
      ΔE = 3.440 / LRV ≈ 47.2%
    2. Kingston Aqua / 354-4
      #8dbbc4
      ΔE = 4.084 / LRV ≈ 45.2%
  49. Berger

    1. Coastal View / 7473
      #93c6c9
      ΔE = 3.523 / LRV ≈ 50.8%
    2. Mystic Lake / 8344
      #9fb4b2
      ΔE = 4.634 / LRV ≈ 43.2%
  50. Kelly-Moore

    1. Acapulco Aqua / KM3221-2
      #90b3b2
      ΔE = 3.548 / LRV ≈ 41.4%
    2. Coastal View / KM3212-1
      #9cc7cc
      ΔE = 4.285 / LRV ≈ 52.3%
  51. Zoffany

    1. Dufour
      #a4c2c4
      ΔE = 3.590 / LRV ≈ 50.5%
  52. Dulux

    1. 30BG 43/163
      #8bb8bf
      ΔE = 3.658 / LRV ≈ 43.5%
    2. 50BG 44/094
      #9db5bb
      ΔE = 5.047 / LRV ≈ 43.8%
  53. Rodda Paint

    1. Kentucky Estate 7488
      #98c7c4
      ΔE = 3.671 / LRV ≈ 51.5%
    2. Mystic Lake 8344
      #a4b6b2
      ΔE = 5.241 / LRV ≈ 44.6%
  54. Cloverdale Paint

    1. Kentucky Estate / 7488
      #98c7c4
      ΔE = 3.671 / LRV ≈ 51.5%
    2. Turquoise Trick / 7472
      #85b5b8
      ΔE = 3.732 / LRV ≈ 41.5%
  55. Brighto Paints

    1. 5-31-3 Dawn Mist
      #a5c0c2
      ΔE = 3.696 / LRV ≈ 49.6%
    2. 7202 Bluegreen
      #a3bcc1
      ΔE = 4.323 / LRV ≈ 47.6%
  56. Colorhouse

    1. Dream .04
      #9cc7c4
      ΔE = 3.710 / LRV ≈ 51.9%
    2. Water .04
      #9fb4b4
      ΔE = 4.539 / LRV ≈ 43.3%
  57. Crown Paint

    1. Open Air
      #a3babb
      ΔE = 3.734 / LRV ≈ 46.5%
    2. Soft Duck Egg
      #a4c2bc
      ΔE = 4.217 / LRV ≈ 50.1%
  58. Pratt & Lambert

    1. Wythe House Blue-Green CW503
      #9ec2bb
      ΔE = 3.805 / LRV ≈ 49.4%
    2. Copenhagen 24-6
      #a0c1c9
      ΔE = 4.754 / LRV ≈ 49.8%
  59. Crown Diamond

    1. 7315-41 Mermaid Whisper
      #9ab4b5
      ΔE = 3.863 / LRV ≈ 42.8%
    2. 7316-41 Still Water
      #90afb2
      ΔE = 5.113 / LRV ≈ 39.8%
  60. Alcro

    1. Isglass
      #a2c1bb
      ΔE = 3.874 / LRV ≈ 49.4%
  61. California Paints

    1. Bulfinch Blue
      #9eb6b8
      ΔE = 3.919 / LRV ≈ 44.2%
    2. Lucinda
      #a7bbb6
      ΔE = 4.961 / LRV ≈ 47.1%
  62. Chrysler

    1. San Gabriel Green
      #84b5b3
      ΔE = 3.951 / LRV ≈ 41.2%
    2. Morning Blue
      #8db7c1
      ΔE = 4.918 / LRV ≈ 43.4%
  63. General Paint

    1. Scurry / CL 3053W
      #a7bfc0
      ΔE = 3.996 / LRV ≈ 49.3%
    2. Elemental / CL 2183W
      #90bcc7
      ΔE = 4.893 / LRV ≈ 46.0%
  64. Tikkurila

    1. 4906
      #9fb6b3
      ΔE = 4.158 / LRV ≈ 44.1%
  65. Dupont

    1. CAS891
      #8eb1b0
      ΔE = 4.249 / LRV ≈ 40.3%
    2. CAS907
      #8fb1b7
      ΔE = 5.009 / LRV ≈ 40.7%
  66. Pascol

    1. Foaming Seas PW070
      #86b2b2
      ΔE = 4.274 / LRV ≈ 40.1%
    2. Foaming Seas PW070
      #85b0b1
      ΔE = 4.915 / LRV ≈ 39.2%
  67. Wattyl

    1. Soothing Seas / E67W
      #8db1b3
      ΔE = 4.282 / LRV ≈ 40.4%
    2. Island Cruise / E56W
      #82c1c6
      ΔE = 4.359 / LRV ≈ 47.0%
  68. GM / General Motors

    1. Glen Green
      #8ec2ba
      ΔE = 4.305 / LRV ≈ 47.9%
    2. Seafoam Aqua
      #96c1ca
      ΔE = 4.313 / LRV ≈ 48.9%
  69. Clark+Kensington

    1. Tender Blue / 34B-4
      #98bdc6
      ΔE = 4.326 / LRV ≈ 47.1%
    2. Objet d'Art / 35A-3
      #9ab3b9
      ΔE = 5.211 / LRV ≈ 42.6%
  70. AMC

    1. Seaside Light Aqua
      #a1c7cb
      ΔE = 4.413 / LRV ≈ 52.7%
    2. Robins Egg Green
      #92bbb0
      ΔE = 5.005 / LRV ≈ 44.8%
  71. Federal Standard

    1. Federal Standard 25414
      #98b2b0
      ΔE = 4.420 / LRV ≈ 41.6%
    2. Federal Standard 35414
      #9db3ae
      ΔE = 5.211 / LRV ≈ 42.5%
  72. Australian Standard AS2700

    1. T3 Smoke Blue
      #9eb6b1
      ΔE = 4.452 / LRV ≈ 43.9%
  73. Ford

    1. Glacier Green
      #a2c8c4
      ΔE = 4.483 / LRV ≈ 53.0%
    2. Light Jade Glow
      #a6bfb8
      ΔE = 4.871 / LRV ≈ 48.8%
  74. Martha Stewart Living

    1. Venetian Glass C24
      #9ecaca
      ΔE = 4.577 / LRV ≈ 53.8%
    2. Aquatic Green B32
      #abbfbc
      ΔE = 4.954 / LRV ≈ 49.5%
  75. Lamborghini

    1. Bianco Polo Weiss / 901
      #a7bdb8
      ΔE = 4.673 / LRV ≈ 48.1%
  76. Focoltone

    1. 1030
      #9cb8b0
      ΔE = 4.684 / LRV ≈ 44.5%
  77. Dulux Australia

    1. Zenith Heights / A312
      #a6c8c6
      ΔE = 4.687 / LRV ≈ 53.5%
  78. Tamiya

    1. Tamiya 80323,XF23
      #90b5ad
      ΔE = 4.700 / LRV ≈ 42.0%
  79. Farrow & Ball

    1. Lulworth Blue / 89
      #aabebf
      ΔE = 4.718 / LRV ≈ 49.1%
  80. Sikkens

    1. N1.06.68
      #a5bab5
      ΔE = 4.734 / LRV ≈ 46.5%
    2. N0.10.70
      #a2c4bb
      ΔE = 5.069 / LRV ≈ 50.7%
  81. Audi

    1. Aeroblau Metallic / G9, LY5R
      #98b2b6
      ΔE = 4.775 / LRV ≈ 41.9%
    2. Navy Blue / L54D
      #89b2b9
      ΔE = 4.994 / LRV ≈ 40.7%
  82. Albany Paint

    1. Schooner
      #95c2cc
      ΔE = 4.799 / LRV ≈ 49.3%
  83. Diamond Vogel

    1. Stormy Bay / 0484
      #9fb3b2
      ΔE = 4.881 / LRV ≈ 42.8%
    2. Trisha's Eyes / 0666
      #93bac5
      ΔE = 5.120 / LRV ≈ 45.4%
  84. Peintures MF

    1. Aquarelle
      #7cb7b5
      ΔE = 4.887 / LRV ≈ 41.5%
    2. Chatoiement vert
      #7cb4b8
      ΔE = 5.135 / LRV ≈ 40.4%
  85. Nippon Paint

    1. Misty Rain / NP BGG 1804 P
      #a4c3bb
      ΔE = 4.887 / LRV ≈ 50.5%
  86. Disney

    1. C1-6 Lost Shadow
      #8ab3ac
      ΔE = 5.009 / LRV ≈ 40.6%
  87. Model Master

    1. Model Master 28013
      #a7c8cb
      ΔE = 5.112 / LRV ≈ 53.8%
    2. Model Master 2739
      #a7c9cb
      ΔE = 5.177 / LRV ≈ 54.3%

Simulazione daltonismo

Monochromacy

Dichromacy

Tricromazia

#94bdbd Esempi HTML e CSS

#94bdbd primo piano

Nulla nuova, buona nuova.

<p style="color: #94bdbd">…</p>

#94bdbd sfondo

L’amore vince sempre.

<p style="background-color: #94bdbd">…</p>

#94bdbd ombra testo

La vita è un sogno.

<p style="text-shadow: 0.1em 0.1em 0.15em #94bdbd">…</p>

Grafico di composizione

Spazi dei colori

Decimale
9747901
Binario
10010100, 10111101, 10111101
Esadecimale
#94bdbd
LRV
≈ 46.4%
Esagono corto più vicino
#9bb ΔE = 1.512
RGB
rgb(148, 189, 189)
RGBA
rgba(148, 189, 189, 1.0)
rg cromaticità
r: 0.281, g: 0.359, b: 0.359
RYB
rosso: 58.039%, giallo: 66.078%, blu: 74.118%
Android / android.graphics.Color
-7029315 / 0xff94bdbd
HSL
hsl(180, 24%, 66%)
HSLA
hsla(180, 24%, 66%, 1.0)
HSV / HSB
tonalità: 180° (180.000), saturazione: 22% (0.217), valore: 74% (0.741)
HSP
tonalità: 180.000, saturazione: 21.693%, luminosità percepita: 69.700%
HSLuv (HUSL)
H: 192.174, S: 36.778, L: 73.781
Cubehelix
H: -188.190, S: 0.309, L: 0.693
TSL
T: -1.489, S: 0.078, L: 0.693
CMYK
turchese: 22% (0.217), magenta: 0% (0.000), giallo: 0% (0.000), colore chiave: 26% (0.259)
CMY
turchese: 42% (0.420), magenta: 26% (0.259), giallo: 26% (0.259)
XYZ
X: 39.593, Y: 46.364, Z: 54.997
xyY
x: 0.281, y: 0.329, Y: 46.364
CIELab
L: 73.781, a: -13.568, b: -4.484
CIELuv
L: 73.781, u: -20.985, v: -4.527
CIELCH / LCHab
L: 73.781, C: 14.289, H: 198.287
CIELUV / LCHuv
L: 73.781, C: 21.468, H: 192.174
Hunter-Lab
L: 68.091, a: -15.366, b: -0.225
CIECAM02
J: 64.938, C: 21.337, h: 199.152, Q: 158.767, M: 18.659, s: 34.282, H: 252.184
OSA-UCS
leggerezza: -10.078, giallo: -0.773, verde: 2.563
LMS
L: 40.000, M: 51.180, S: 54.834
YCbCr
Y: 167.814, Cb: 134.068, Cr: 110.001
YCoCg
Y: 178.750, Cg: 10.250, Co: 26.750
YDbDr
Y: 176.741, Db: 18.450, Dr: 54.653
YPbPr
Y: 180.267, Pb: 4.715, Pr: -20.500
xvYCC
Y: 170.818, Cb: 132.142, Cr: 109.992
YIQ
Y: 176.741, I: -24.424, Q: -8.670
YUV
Y: 176.741, U: 6.034, V: -25.215
Sistema Munsell dei Colori
2.5B 7/4 ΔE = 2.700
Colore del marchio
Vimeo ΔE = 13.479

Colori casuali

Rosso

Verde

Blu