#63121B#63121B

#63121B is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.0% C 0.113 H 20.5°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#63121B
RGB	rgb(99, 18, 27)
HSL	hsl(353, 69%, 23%)
HSV	hsv(353, 82%, 39%)
CMYK	cmyk(0%, 81.8%, 72.7%, 61.2%)
CIE-LAB	lab(20.69, 35.94, 16.92)
CIE-LCH	lch(20.69, 39.72, 25.21°)
OKLab	oklab(33.03% 0.106 0.0396)
OKLCH	oklch(33.03% 0.113 20.5)
XYZ	xyz(5.5603, 3.1652, 1.3549)
Luminance	0.0316 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63121B #12635A

analogous

#631243 #63121B #633112

triadic

#63121B #1B6312 #121B63

tetradic

#63121B #436312 #12635A #311263

square

#63121B #436312 #12635A #311263

split-complementary

#63121B #126331 #124363

monochromatic

#1A0507 #2F090D #63121B #971B29 #CB2537

Accessibility & contrast

On white

12.86

#63121B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#63121B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63121B

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63121B	#FFFFFF	#000000	##FFFFFF
##63121B	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A271B

Deuteranopia (green-blind)

#3E3818

Tritanopia (blue-blind)

#6D0016

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #63121b;
/* rgb */ color: rgb(99, 18, 27);
/* oklch */ color: oklch(33.0% 0.113 20.5);

Tailwind

colors: {
  custom: {
    50: '#965857',
    500: '#63121b',
    950: '#000000',
  },
}

SCSS

$custom: #63121b;
$custom-light: #965857;
$custom-dark: #000000;

JSON

{
  "hex": "#63121b",
  "rgb": {
    "r": 99,
    "g": 18,
    "b": 27
  },
  "hsl": {
    "h": 353.333,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.33031,
    "c": 0.11312,
    "h": 20.5
  },
  "luminance": 0.03164
}

Semantic roles & 50–950 ramp

primary

#63121B

secondary

#369B90

accent

#ECD83C

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #63121B

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

Preview Lab → · Contrast checker → · Palette generator →