#63151F#63151F

#63151F is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.4% C 0.110 H 18.7°. Best body text is #FFFFFF at 12.67:1 contrast (WCAG AA passes).

Color values

HEX#63151F
RGBrgb(99, 21, 31)
HSLhsl(352, 65%, 24%)
HSVhsv(352, 79%, 39%)
CMYKcmyk(0%, 78.8%, 68.7%, 61.2%)
CIE-LABlab(21.16, 35.08, 14.76)
CIE-LCHlch(21.16, 38.06, 22.82°)
OKLaboklab(33.41% 0.1042 0.0353)
OKLCHoklch(33.41% 0.11 18.7)
XYZxyz(5.6617, 3.2887, 1.6327)
Luminance0.0329 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63151F #156359
analogous
#631546 #63151F #633215
triadic
#63151F #1F6315 #151F63
tetradic
#63151F #466315 #156359 #321563
square
#63151F #466315 #156359 #321563
split-complementary
#63151F #156332 #154663
monochromatic
#190508 #310A0F #63151F #95202F #C82A3F

Accessibility & contrast

On white

12.67
#63151F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.66
#63151F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63151F
12.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63151F#FFFFFF#000000##FFFFFF
##63151F1.0012.671.6612.67
#FFFFFF12.671.0021.001.00
#0000001.6621.001.0021.00
##FFFFFF12.671.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2B281F
Deuteranopia (green-blind)
#3F391D
Tritanopia (blue-blind)
#6D0019
Achromatopsia (no color)
#333333

Design tokens & code

CSS
--color: #63151f;
/* rgb */ color: rgb(99, 21, 31);
/* oklch */ color: oklch(33.4% 0.110 18.7);
Tailwind
colors: {
  custom: {
    50: '#955a5a',
    500: '#63151f',
    950: '#000000',
  },
}
SCSS
$custom: #63151f;
$custom-light: #955a5a;
$custom-dark: #000000;
JSON
{
  "hex": "#63151f",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 31
  },
  "hsl": {
    "h": 352.308,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.33405,
    "c": 0.10999,
    "h": 18.7
  },
  "luminance": 0.03288
}

Semantic roles & 50–950 ramp

primary
#63151F
secondary
#3A9A8E
accent
#E8D240
background
#F9F5F5
surface
#F2E9E9
border
#CCC5C5
text
#0E0403
muted
#7E7978

Preview Lab

Preview with #63151F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#63151F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva