#63151A#63151A

#63151A is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.3% C 0.110 H 22.3°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#63151A
RGB	rgb(99, 21, 26)
HSL	hsl(356, 65%, 24%)
HSV	hsv(356, 79%, 39%)
CMYK	cmyk(0%, 78.8%, 73.7%, 61.2%)
CIE-LAB	lab(21.07, 34.77, 18.06)
CIE-LCH	lch(21.07, 39.18, 27.45°)
OKLab	oklab(33.31% 0.102 0.0419)
OKLCH	oklch(33.31% 0.11 22.3)
XYZ	xyz(5.6008, 3.2644, 1.3123)
Luminance	0.0326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63151A #15635E

analogous

#631541 #63151A #633715

triadic

#63151A #1A6315 #151A63

tetradic

#63151A #416315 #15635E #371563

square

#63151A #416315 #15635E #371563

split-complementary

#63151A #156337 #154163

monochromatic

#190507 #310A0D #63151A #952027 #C82A35

Accessibility & contrast

On white

12.71

#63151A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#63151A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63151A

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63151A	#FFFFFF	#000000	##FFFFFF
##63151A	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2819

Deuteranopia (green-blind)

#3F3918

Tritanopia (blue-blind)

#6D0018

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #63151a;
/* rgb */ color: rgb(99, 21, 26);
/* oklch */ color: oklch(33.3% 0.110 22.3);

Tailwind

colors: {
  custom: {
    50: '#965a56',
    500: '#63151a',
    950: '#000000',
  },
}

SCSS

$custom: #63151a;
$custom-light: #965a56;
$custom-dark: #000000;

JSON

{
  "hex": "#63151a",
  "rgb": {
    "r": 99,
    "g": 21,
    "b": 26
  },
  "hsl": {
    "h": 356.154,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.33307,
    "c": 0.1103,
    "h": 22.3
  },
  "luminance": 0.03264
}

Semantic roles & 50–950 ramp

primary

#63151A

secondary

#3A9A94

accent

#E8DD40

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #63151A

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

Preview Lab → · Contrast checker → · Palette generator →