#63151D#63151D

#63151D is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.4% C 0.110 H 20.2°. Best body text is #FFFFFF at 12.68:1 contrast (WCAG AA passes).

Color values

HEX	#63151D
RGB	rgb(99, 21, 29)
HSL	hsl(354, 65%, 24%)
HSV	hsv(354, 79%, 39%)
CMYK	cmyk(0%, 78.8%, 70.7%, 61.2%)
CIE-LAB	lab(21.13, 34.95, 16.09)
CIE-LCH	lch(21.13, 38.47, 24.71°)
OKLab	oklab(33.36% 0.1033 0.038)
OKLCH	oklch(33.36% 0.11 20.2)
XYZ	xyz(5.6361, 3.2785, 1.4982)
Luminance	0.0328 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63151D #15635B

analogous

#631544 #63151D #633415

triadic

#63151D #1D6315 #151D63

tetradic

#63151D #446315 #15635B #341563

square

#63151D #446315 #15635B #341563

split-complementary

#63151D #156334 #154463

monochromatic

#190507 #310A0E #63151D #95202C #C82A3B

Accessibility & contrast

On white

12.68

#63151D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#63151D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63151D

12.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63151D	#FFFFFF	#000000	##FFFFFF
##63151D	1.00	12.68	1.66	12.68
#FFFFFF	12.68	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B281D

Deuteranopia (green-blind)

#3F391B

Tritanopia (blue-blind)

#6D0019

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #63151d;
/* rgb */ color: rgb(99, 21, 29);
/* oklch */ color: oklch(33.4% 0.110 20.2);

Tailwind

colors: {
  custom: {
    50: '#955a58',
    500: '#63151d',
    950: '#000000',
  },
}

SCSS

$custom: #63151d;
$custom-light: #955a58;
$custom-dark: #000000;

JSON

{
  "hex": "#63151d",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 29
  },
  "hsl": {
    "h": 353.846,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.33364,
    "c": 0.11007,
    "h": 20.2
  },
  "luminance": 0.03278
}

Semantic roles & 50–950 ramp

primary

#63151D

secondary

#3A9A90

accent

#E8D740

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #63151D

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

Preview Lab → · Contrast checker → · Palette generator →