#63181E#63181E

#63181E is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.7% C 0.107 H 20.8°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#63181E
RGB	rgb(99, 24, 30)
HSL	hsl(355, 61%, 24%)
HSV	hsv(355, 76%, 39%)
CMYK	cmyk(0%, 75.8%, 69.7%, 61.2%)
CIE-LAB	lab(21.58, 33.80, 15.97)
CIE-LCH	lch(21.58, 37.39, 25.29°)
OKLab	oklab(33.71% 0.0999 0.0379)
OKLCH	oklch(33.71% 0.107 20.8)
XYZ	xyz(5.7072, 3.4005, 1.5839)
Luminance	0.0340 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63181E #18635D

analogous

#631844 #63181E #633818

triadic

#63181E #1E6318 #181E63

tetradic

#63181E #446318 #18635D #381863

square

#63181E #446318 #18635D #381863

split-complementary

#63181E #186338 #184463

monochromatic

#190607 #320C0F #63181E #94242D #C6303C

Accessibility & contrast

On white

12.50

#63181E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#63181E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63181E

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63181E	#FFFFFF	#000000	##FFFFFF
##63181E	1.00	12.50	1.68	12.50
#FFFFFF	12.50	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2A1E

Deuteranopia (green-blind)

#403A1C

Tritanopia (blue-blind)

#6D021B

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #63181e;
/* rgb */ color: rgb(99, 24, 30);
/* oklch */ color: oklch(33.7% 0.107 20.8);

Tailwind

colors: {
  custom: {
    50: '#955b59',
    500: '#63181e',
    950: '#000000',
  },
}

SCSS

$custom: #63181e;
$custom-light: #955b59;
$custom-dark: #000000;

JSON

{
  "hex": "#63181e",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 30
  },
  "hsl": {
    "h": 355.2,
    "s": 60.976,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33709,
    "c": 0.10682,
    "h": 20.8
  },
  "luminance": 0.034
}

Semantic roles & 50–950 ramp

primary

#63181E

secondary

#3E9992

accent

#E4D744

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #63181E

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

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