Encycolorpedia

#d9b6b1 Codice Colore Hex

#d9b6b1 Paint ChipIl codice colore esadecimale #d9b6b1 è una sfumatura chiaro di rosso. Nel modello di colori RGB #d9b6b1 è composto di 85.1% rosso, 71.37% verde e 69.41% blu. Nel sistema di colori HSL #d9b6b1 ha una tonalità di 8° (gradi), 34% di saturazione e chiarezza del 77%. Il colore ha una lunghezza d'onda approssimativa di 598.02 nm.

Foto d'archivio / immagini

Risparmia il 15% sull'abbonamento mensile iStock con il codice MONTHLY15.

  1. Racers running on track with relay baton
  2. Brain left and right creativity functions   Sketch concept
  3. Mature woman ear with earring and blond hair

Variazioni di colore

Nomi colori correlati

Combinazioni di colori

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

#d9b6b1 gradiente lineare al complementare #b3d2d7

  1. #d9b6b1
  2. #d4bbb7
  3. #cec0be
  4. #c8c4c4
  5. #c2c9ca
  6. #bbcdd1
  7. #b3d2d7

Colori monocromatici

  1. #b3928d
  2. #c09e99
  3. #ccaaa5
  4. #d9b6b1
  5. #e6c2bd
  6. #f3cfca
  7. #ffdbd6

Tinte e sfumature

#d9b6b1 al nero

  1. #d9b6b1
  2. #e0c2be
  3. #e6ceca
  4. #eddad7
  5. #f3e6e4
  6. #f9f3f2
  7. #ffffff / #fff

#d9b6b1 al bianco

  1. #d9b6b1
  2. #b19591
  3. #8b7572
  4. #675755
  5. #443b39
  6. #252020
  7. #000000 / #000

Vernici

Pitture simili

  1. CIL

    1. ★ Pink Pavilion
      #d8b4b0
      ΔE = 0.796 / LRV ≈ 50.4%
    2. Poet's Bloom
      #e3b5aa
      ΔE = 3.712 / LRV ≈ 52.3%
  2. Dulux

    1. ★ 10YR 51/138
      #d8b4b0
      ΔE = 0.796 / LRV ≈ 50.4%
    2. Nomadic Glow 3 / Pink Parchment / 30YR 49/097
      #cbb3ad
      ΔE = 3.498 / LRV ≈ 48.0%
  3. Resene

    1. ★ Sweet As R82-024-031
      #dbb8b4
      ΔE = 0.869 / LRV ≈ 52.6%
    2. ★ Oyster Pink R81-022-033
      #d4b5b0
      ΔE = 1.222 / LRV ≈ 50.2%
  4. Brighto Paints

    1. ★ 4-2-3 Cherish
      #dcb8b1
      ΔE = 1.164 / LRV ≈ 52.7%
    2. 3-1-4 Pink Dusk
      #d9aaa7
      ΔE = 4.526 / LRV ≈ 46.3%
  5. Fender

    1. ★ 56 / Shell Pink
      #dcbab5
      ΔE = 1.388 / LRV ≈ 53.7%
  6. Dulux Australia

    1. ★ Pink / G38
      #deb6b2
      ΔE = 1.403 / LRV ≈ 52.2%
    2. Mauve Pink / G37
      #dbbdc0
      ΔE = 4.416 / LRV ≈ 55.3%
  7. Dutch Boy

    1. ★ Rose Petal Path
      #dbb6b4
      ΔE = 1.422 / LRV ≈ 51.8%
    2. Mauve Cashmere
      #e2b6b1
      ΔE = 2.381 / LRV ≈ 52.8%
  8. Caparol

    1. ★ 77 12 37 / Magma 85
      #d8b4ac
      ΔE = 1.487 / LRV ≈ 50.2%
    2. 75 8 37 / Magma 55
      #c8b0ac
      ΔE = 4.143 / LRV ≈ 46.3%
  9. Porter Paints

    1. ★ Rose Hip / 433-3
      #ddb9b6
      ΔE = 1.527 / LRV ≈ 53.4%
    2. ★ Paradise Nut / 429-4
      #d6b5ad
      ΔE = 1.547 / LRV ≈ 50.4%
  10. Benjamin Moore

    1. ★ Desert Rose / 2094-50
      #deb7af
      ΔE = 1.710 / LRV ≈ 52.5%
    2. Kept Love Letters / CSP-425
      #d7bcbc
      ΔE = 3.350 / LRV ≈ 54.0%
  11. Peintures MF

    1. ★ Côte mexicaine
      #d5b6ae
      ΔE = 1.752 / LRV ≈ 50.7%
    2. Tache de rousseur
      #e0b5aa
      ΔE = 3.172 / LRV ≈ 51.8%
  12. Plascon

    1. ★ Peach Cobbler R7-C2-2
      #e0b8b4
      ΔE = 1.776 / LRV ≈ 53.4%
    2. Bare Necessities O3-D2-2
      #c8b0a8
      ΔE = 4.532 / LRV ≈ 46.2%
  13. Taubmans

    1. ★ Nostalgia / T12 31.E9
      #d7b2b0
      ΔE = 1.847 / LRV ≈ 49.4%
    2. Tender Kiss / T10 28D-2
      #e9b7b2
      ΔE = 4.107 / LRV ≈ 54.4%
  14. Sherwin-Williams

    1. ★ Rose Colored - 6303
      #dcb6b5
      ΔE = 1.926 / LRV ≈ 52.0%
    2. Fading Rose - 6296
      #dabdc1
      ΔE = 4.841 / LRV ≈ 55.2%
  15. Nippon Paint

    1. ★ Bradford Beige / NP N 1887 P
      #d4b7af
      ΔE = 2.085 / LRV ≈ 51.0%
    2. Tinted Glass / NP N 1909 P
      #c9b7b3
      ΔE = 4.329 / LRV ≈ 49.5%
  16. Coronado Paint

    1. ★ 8690 - Chambord Charm
      #d6bab7
      ΔE = 2.110 / LRV ≈ 52.8%
    2. 8698 - Think About It
      #dcbfc0
      ΔE = 4.192 / LRV ≈ 56.3%
  17. Opaltone / OMS

    1. ★ 4063
      #d6b9b1
      ΔE = 2.130 / LRV ≈ 52.2%
  18. Diamond Vogel

    1. ★ O Fortuna / 0070
      #dfbbb8
      ΔE = 2.152 / LRV ≈ 54.7%
    2. Pink Softness / 0077
      #ddbabe
      ΔE = 4.291 / LRV ≈ 54.2%
  19. Brillux

    1. 30.09.12
      #dcb7b7
      ΔE = 2.329 / LRV ≈ 52.5%
    2. 33.12.12
      #e1b8bd
      ΔE = 4.768 / LRV ≈ 54.0%
  20. General Paint

    1. Sheer / CL 1402W
      #e3b8b3
      ΔE = 2.447 / LRV ≈ 53.9%
    2. Mi Amor / CL 2582W
      #d6bfb7
      ΔE = 4.049 / LRV ≈ 55.0%
  21. Levis

    1. Shady Red C20
      #dab6ab
      ΔE = 2.550 / LRV ≈ 51.3%
    2. Atl Ombre D1
      #c4b1ac
      ΔE = 5.115 / LRV ≈ 46.2%
  22. Natural Color System / NCS

    1. S 2005-R10B
      #d3bab6
      ΔE = 2.566 / LRV ≈ 52.3%
    2. S 2010-R
      #d7afa8
      ΔE = 2.639 / LRV ≈ 47.9%
  23. Earthpaint

    1. 3-50-3 Colonial Pink
      #dfb7b7
      ΔE = 2.653 / LRV ≈ 53.0%
    2. 4-48-2 Rose Shadow
      #d6c0c2
      ΔE = 5.199 / LRV ≈ 55.9%
  24. Evonik-Degussa

    1. 4141P Plymouth Notch
      #d0b4ac
      ΔE = 2.681 / LRV ≈ 49.0%
    2. 4131P Bradford Beige
      #d5b8ae
      ΔE = 2.752 / LRV ≈ 51.5%
  25. Kelly-Moore

    1. Spring Cheer / KM3692-2
      #dfb6b6
      ΔE = 2.692 / LRV ≈ 52.5%
    2. Sandstorm / KM4107-1
      #ccb5ac
      ΔE = 3.970 / LRV ≈ 48.9%
  26. Devoe Paint

    1. Movie Star / 70RR 54/153
      #e2b6b4
      ΔE = 2.718 / LRV ≈ 52.9%
    2. Soft Wine / 30RR 49/067
      #c7b4b3
      ΔE = 4.675 / LRV ≈ 48.0%
  27. Sto

    1. 33314
      #d5b1b1
      ΔE = 2.720 / LRV ≈ 48.8%
    2. 33113
      #e2b0a5
      ΔE = 4.635 / LRV ≈ 49.9%
  28. Crown Diamond

    1. 7214-31 Martian Sand
      #dcb1a8
      ΔE = 2.873 / LRV ≈ 49.5%
    2. 7206-31 Surrealism
      #d8bcbd
      ΔE = 3.598 / LRV ≈ 54.2%
  29. Sico

    1. 6076-31 Martian Sand
      #dcb1a8
      ΔE = 2.873 / LRV ≈ 49.5%
    2. 6040-31 Izmir Pink
      #ceb0b5
      ΔE = 5.218 / LRV ≈ 47.5%
  30. Australian Standard AS2700

    1. P31 Dusty Pink
      #dbbebb
      ΔE = 2.969 / LRV ≈ 55.5%
    2. P21 Sunset Pink
      #e2bbbd
      ΔE = 3.946 / LRV ≈ 55.4%
  31. Pratt & Lambert

    1. Lilac Tan 4-28
      #dbbcb2
      ΔE = 2.982 / LRV ≈ 54.2%
    2. St. Mary's Wallpaper Salmon Medium Light CW204
      #dbb1a2
      ΔE = 4.693 / LRV ≈ 49.1%
  32. Behr

    1. Coral Canyon C40-90
      #dcbbb0
      ΔE = 3.037 / LRV ≈ 53.9%
    2. Soft Blush FF82-1
      #dbc0b4
      ΔE = 4.703 / LRV ≈ 56.1%
  33. Ralph Lauren

    1. Early Morning / RLVM218
      #cfb7b0
      ΔE = 3.042 / LRV ≈ 50.3%
    2. Venetian / RLVM209
      #d7bdbc
      ΔE = 3.360 / LRV ≈ 54.5%
  34. Dunn-Edwards

    1. Dusty Trail / 1521
      #cdb1ab
      ΔE = 3.063 / LRV ≈ 47.4%
    2. Wispy Mauve / 1415
      #c6aeaa
      ΔE = 4.720 / LRV ≈ 45.2%
  35. AMC

    1. Cotillion Mauve
      #ceafaa
      ΔE = 3.066 / LRV ≈ 46.7%
    2. Montego Light Rose
      #cebeb8
      ΔE = 5.005 / LRV ≈ 53.4%
  36. Laura Ashley

    1. 19-4 Pale Cameo
      #e4b8af
      ΔE = 3.107 / LRV ≈ 53.9%
    2. 509 Chalk Pink 3
      #e6b6b2
      ΔE = 3.474 / LRV ≈ 53.5%
  37. Flügger

    1. Rokoko: Caput Mortuum + Zinkhvid (No.5)
      #cfb4b4
      ΔE = 3.205 / LRV ≈ 49.2%
    2. Rokoko: Jernoxydrød + Zinkhvid (No.4)
      #e3bcbb
      ΔE = 3.294 / LRV ≈ 55.9%
  38. Vista Paint

    1. Chambord Charm
      #d9bebc
      ΔE = 3.272 / LRV ≈ 55.2%
    2. Spring Thing
      #d6b2b6
      ΔE = 4.109 / LRV ≈ 49.5%
  39. Scib Paints

    1. Chambord Charm / 8690
      #d9bebc
      ΔE = 3.272 / LRV ≈ 55.2%
    2. Mauve Star / 8746
      #cdbbb7
      ΔE = 4.213 / LRV ≈ 51.9%
  40. Cloverdale Paint

    1. Demetrio / 8689
      #cdb0ae
      ΔE = 3.274 / LRV ≈ 47.1%
    2. Parma / 8642
      #e3c0b5
      ΔE = 4.293 / LRV ≈ 57.4%
  41. Rodda Paint

    1. Demetrio 8689
      #cdb0ae
      ΔE = 3.274 / LRV ≈ 47.1%
    2. Shrub Rose 8713
      #d5b8be
      ΔE = 5.189 / LRV ≈ 52.1%
  42. Sigma

    1. Warm Red / S 2020-Y90R
      #d5afa5
      ΔE = 3.294 / LRV ≈ 47.5%
    2. Warm Red / S 1030-R
      #eab5b5
      ΔE = 5.080 / LRV ≈ 53.9%
  43. British Standard

    1. BS 4800 04 C 33 - Orchid pink / Parisian pink / Shell
      #e5bdb5
      ΔE = 3.369 / LRV ≈ 56.4%
    2. BS 2660 BS 1-020 - Daybreak
      #e1b9ad
      ΔE = 3.408 / LRV ≈ 53.7%
  44. Sanderson

    1. Kingly Grey
      #d0aead
      ΔE = 3.395 / LRV ≈ 46.7%
    2. Dusky Rose
      #dbbbae
      ΔE = 3.798 / LRV ≈ 53.7%
  45. Tollens

    1. T2107-4
      #e1b7ab
      ΔE = 3.444 / LRV ≈ 52.8%
    2. TF213-2
      #e3b8ab
      ΔE = 4.006 / LRV ≈ 53.6%
  46. Duron

    1. Chelsea Mauve
      #d3b8ad
      ΔE = 3.461 / LRV ≈ 51.1%
    2. Artistic Taupe
      #d2baba
      ΔE = 3.510 / LRV ≈ 52.4%
  47. Berger

    1. Parma / 8642
      #e2baae
      ΔE = 3.563 / LRV ≈ 54.3%
    2. Demetrio / 8689
      #ccaba9
      ΔE = 4.343 / LRV ≈ 44.8%
  48. ICI Paints

    1. Taupe Pink 10YR 50/101
      #ccaea9
      ΔE = 3.577 / LRV ≈ 46.0%
    2. Orchard Pink 50YR 59/125
      #debeb2
      ΔE = 3.987 / LRV ≈ 55.6%
  49. Sikkens

    1. A6.07.70
      #d8b7ba
      ΔE = 3.588 / LRV ≈ 52.0%
    2. A5.09.71
      #dfb7bc
      ΔE = 4.593 / LRV ≈ 53.2%
  50. Nerolac

    1. Dusty Beige - 2192
      #d8b7ba
      ΔE = 3.588 / LRV ≈ 52.0%
    2. Calamine Lotion - 2171
      #e2afb2
      ΔE = 5.212 / LRV ≈ 50.0%
  51. Kansai Paint

    1. Tranquil
      #e5bfb8
      ΔE = 3.631 / LRV ≈ 57.4%
  52. Albany Paint

    1. Chaffinch
      #e3b4aa
      ΔE = 3.646 / LRV ≈ 51.9%
    2. Cliff Tops
      #ddbdae
      ΔE = 4.805 / LRV ≈ 54.8%
  53. Glidden

    1. Forever Fairytale / PPG1016-4
      #d2bbb2
      ΔE = 3.736 / LRV ≈ 52.5%
    2. Subdued / PPG1015-4
      #ccb8b3
      ΔE = 3.776 / LRV ≈ 50.4%
  54. Matthews Paint

    1. Frosty Lavender Met. / 22363
      #d3afb1
      ΔE = 3.828 / LRV ≈ 47.7%
    2. Crimson Prl over Hot Oro / 23469/23551
      #c5afa9
      ΔE = 4.979 / LRV ≈ 45.4%
  55. Asian Paints

    1. Creamy Crescendo / 9545
      #ccb0a7
      ΔE = 3.889 / LRV ≈ 46.7%
    2. Jewel Sand / 8689
      #cbacab
      ΔE = 4.380 / LRV ≈ 45.1%
  56. GM / General Motors

    1. Goldstream
      #ddbcaf
      ΔE = 3.909 / LRV ≈ 54.4%
  57. Dupont

    1. CAS50
      #e9bbb7
      ΔE = 3.930 / LRV ≈ 56.3%
    2. CAS794
      #e0c0bf
      ΔE = 3.949 / LRV ≈ 57.3%
  58. ECOS Paints

    1. Miniature Posey (0118)
      #e4c1bd
      ΔE = 4.027 / LRV ≈ 58.3%
    2. Angel Breath (0043)
      #dcb3a3
      ΔE = 4.823 / LRV ≈ 50.1%
  59. Focoltone

    1. 4042
      #d5b9ac
      ΔE = 4.043 / LRV ≈ 51.8%
  60. KILZ

    1. Arizona Clay / B632
      #e2bcaf
      ΔE = 4.055 / LRV ≈ 55.2%
  61. Olympic

    1. Wild Rice D26-2
      #d3bcb2
      ΔE = 4.082 / LRV ≈ 53.0%
    2. Summer Tan C27-3
      #dcb2a2
      ΔE = 4.955 / LRV ≈ 49.7%
  62. Ford

    1. Chalk Pink
      #e9b7b1
      ΔE = 4.121 / LRV ≈ 54.4%
    2. Pink Lustre
      #dab0a2
      ΔE = 4.476 / LRV ≈ 48.6%
  63. California Paints

    1. DE 6080 - Traveling Tan
      #dec1b8
      ΔE = 4.129 / LRV ≈ 57.1%
    2. Mountain Laurel
      #d2afa1
      ΔE = 4.732 / LRV ≈ 46.9%
  64. PPG Pittsburgh Paints

    1. Tempting Taupe 427-4
      #d1afa3
      ΔE = 4.140 / LRV ≈ 46.9%
    2. Crushed Roses 435-3
      #dbb7bc
      ΔE = 4.438 / LRV ≈ 52.6%
  65. Limestrong

    1. Mesa Shade D
      #dbbbad
      ΔE = 4.173 / LRV ≈ 53.6%
  66. Zoffany

    1. Faded Rose
      #d1bcbc
      ΔE = 4.177 / LRV ≈ 53.2%
  67. Toyo Ink

    1. CF10537
      #d0bbb2
      ΔE = 4.181 / LRV ≈ 52.2%
    2. CF10734
      #cfbfb8
      ΔE = 5.243 / LRV ≈ 54.0%
  68. RAL

    1. RAL 020 80 10
      #dbbfc0
      ΔE = 4.227 / LRV ≈ 56.1%
    2. RAL 010 80 10
      #dcc0c3
      ΔE = 5.109 / LRV ≈ 56.9%
  69. Jotun

    1. 2845 / Bevegelse
      #d4beb5
      ΔE = 4.256 / LRV ≈ 54.2%
    2. 2526 / Støvrosa
      #ceb9ae
      ΔE = 4.715 / LRV ≈ 50.9%
  70. Valspar Paint

    1. Belle Grove Old Rose
      #d8b5a6
      ΔE = 4.263 / LRV ≈ 50.4%
    2. Radiant Pink
      #e7beb2
      ΔE = 4.556 / LRV ≈ 57.0%
  71. Federal Standard

    1. Federal Standard 11630
      #e7c1bb
      ΔE = 4.288 / LRV ≈ 58.7%
  72. Colortrend

    1. 0077
      #ddbabe
      ΔE = 4.291 / LRV ≈ 54.2%
    2. 0043
      #dcb3a3
      ΔE = 4.823 / LRV ≈ 50.1%
  73. Wattyl

    1. Highland Rose / C65W
      #deb0b3
      ΔE = 4.431 / LRV ≈ 49.8%
  74. New Look

    1. Love Shine / F27-10
      #deb0b3
      ΔE = 4.431 / LRV ≈ 49.8%
  75. Johnstone's Paint

    1. Pink Starburst
      #e1b5b9
      ΔE = 4.447 / LRV ≈ 52.6%
  76. Tikkurila

    1. 4873
      #d1bcbd
      ΔE = 4.454 / LRV ≈ 53.2%
    2. H478
      #c7b6b6
      ΔE = 5.052 / LRV ≈ 49.0%
  77. 1829

    1. Rose Pink
      #d9abab
      ΔE = 4.517 / LRV ≈ 46.8%
  78. Fired Earth

    1. Afternoon Tea
      #ceb6aa
      ΔE = 4.525 / LRV ≈ 49.5%
  79. Clark+Kensington

    1. Simply Elegant / 08A-2
      #e2bbac
      ΔE = 4.630 / LRV ≈ 54.7%
    2. Calico Hearts / 08B-3
      #dfaca3
      ΔE = 4.971 / LRV ≈ 47.8%
  80. Bristol

    1. Timeless Pink / P069-W3
      #e6c2b9
      ΔE = 4.639 / LRV ≈ 58.9%
    2. Sleepy Pink / P067-W4
      #e0afa3
      ΔE = 4.797 / LRV ≈ 49.2%
  81. Beckers

    1. Karamell 700 / 1820-Y97R
      #daa9a7
      ΔE = 5.062 / LRV ≈ 46.1%
  82. Loop

    1. Helsinki / LP-187
      #ecc0be
      ΔE = 5.150 / LRV ≈ 59.3%
  83. Pantone / PMS

    1. 502
      #ebbfbf
      ΔE = 5.166 / LRV ≈ 58.7%
    2. 5015
      #d4a8a8
      ΔE = 5.206 / LRV ≈ 44.8%
  84. Alcro

    1. Silke
      #c9bbb6
      ΔE = 5.248 / LRV ≈ 51.3%

Simulazione daltonismo

Monochromacy

Dichromacy

Tricromazia

#d9b6b1 Esempi HTML e CSS

#d9b6b1 primo piano

Mangia bene, ridi spesso, ama molto.

<p style="color: #d9b6b1">…</p>

#d9b6b1 sfondo

Cuando l’amico chiede, non v’è domani.

<p style="background-color: #d9b6b1">…</p>

#d9b6b1 ombra testo

A caval donato non si guarda in bocca.

<p style="text-shadow: 0.1em 0.1em 0.15em #d9b6b1">…</p>

Grafico di composizione

Spazi dei colori

Decimale
14268081
Binario
11011001, 10110110, 10110001
Esadecimale
#d9b6b1
LRV
≈ 51.4%
Esagono corto più vicino
#dbb ΔE = 2.900
RGB
rgb(217, 182, 177)
RGBA
rgba(217, 182, 177, 1.0)
rg cromaticità
r: 0.377, g: 0.316, b: 0.307
RYB
rosso: 85.098%, giallo: 71.653%, blu: 69.412%
Android / android.graphics.Color
-2509135 / 0xffd9b6b1
HSL
hsl(8, 34%, 77%)
HSLA
hsla(8, 34%, 77%, 1.0)
HSV / HSB
tonalità: 8° (7.500), saturazione: 18% (0.184), valore: 85% (0.851)
HSP
tonalità: 7.500, saturazione: 18.433%, luminosità percepita: 75.530%
HSLuv (HUSL)
H: 20.939, S: 35.916, L: 76.911
Cubehelix
H: -0.548, S: 0.325, L: 0.753
TSL
T: 3.815, S: 0.063, L: 0.753
CMYK
turchese: 0% (0.000), magenta: 16% (0.161), giallo: 18% (0.184), colore chiave: 15% (0.149)
CMY
turchese: 15% (0.149), magenta: 29% (0.286), giallo: 31% (0.306)
XYZ
X: 53.279, Y: 51.384, Z: 48.698
xyY
x: 0.347, y: 0.335, Y: 51.384
CIELab
L: 76.911, a: 11.787, b: 7.242
CIELuv
L: 76.911, u: 21.835, v: 8.355
CIELCH / LCHab
L: 76.911, C: 13.834, H: 31.567
CIELUV / LCHuv
L: 76.911, C: 23.379, H: 20.939
Hunter-Lab
L: 71.682, a: 7.229, b: 9.899
CIECAM02
J: 70.411, C: 13.757, h: 28.127, Q: 165.322, M: 12.030, s: 26.976, H: 10.149
OSA-UCS
leggerezza: -10.064, giallo: 0.874, verde: -1.813
LMS
L: 53.209, M: 50.034, S: 48.748
YCbCr
Y: 180.843, Cb: 120.625, Cr: 143.720
YCoCg
Y: 189.500, Cg: -7.500, Co: 64.250
YDbDr
Y: 191.895, Db: -22.415, Dr: -47.740
YPbPr
Y: 189.095, Pb: -6.525, Pr: 17.730
xvYCC
Y: 178.399, Cb: 122.268, Cr: 143.575
YIQ
Y: 191.895, I: 22.456, Q: 5.845
YUV
Y: 191.895, U: -7.328, V: 22.025
Sistema Munsell dei Colori
10RP 8/4 ΔE = 4.813
Colore del marchio
TYPO3 ΔE = 18.759

Colori casuali

Rosso

Verde

Blu