#63131F#63131F

#63131F is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.2% C 0.112 H 17.9°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#63131F
RGB	rgb(99, 19, 31)
HSL	hsl(351, 68%, 23%)
HSV	hsv(351, 81%, 39%)
CMYK	cmyk(0%, 80.8%, 68.7%, 61.2%)
CIE-LAB	lab(20.90, 35.82, 14.42)
CIE-LCH	lch(20.90, 38.62, 21.92°)
OKLab	oklab(33.21% 0.1066 0.0345)
OKLCH	oklch(33.21% 0.112 17.9)
XYZ	xyz(5.6264, 3.2182, 1.6210)
Luminance	0.0322 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63131F #136357

analogous

#631347 #63131F #632F13

triadic

#63131F #1F6313 #131F63

tetradic

#63131F #476313 #136357 #2F1363

square

#63131F #476313 #136357 #2F1363

split-complementary

#63131F #13632F #134763

monochromatic

#1A0508 #30090F #63131F #961D2F #CA273F

Accessibility & contrast

On white

12.78

#63131F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#63131F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63131F

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63131F	#FFFFFF	#000000	##FFFFFF
##63131F	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A281F

Deuteranopia (green-blind)

#3E381D

Tritanopia (blue-blind)

#6D0018

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #63131f;
/* rgb */ color: rgb(99, 19, 31);
/* oklch */ color: oklch(33.2% 0.112 17.9);

Tailwind

colors: {
  custom: {
    50: '#95595a',
    500: '#63131f',
    950: '#000000',
  },
}

SCSS

$custom: #63131f;
$custom-light: #95595a;
$custom-dark: #000000;

JSON

{
  "hex": "#63131f",
  "rgb": {
    "r": 99,
    "g": 19,
    "b": 31
  },
  "hsl": {
    "h": 351,
    "s": 67.797,
    "l": 23.137
  },
  "oklch": {
    "l": 0.33207,
    "c": 0.11201,
    "h": 17.9
  },
  "luminance": 0.03217
}

Semantic roles & 50–950 ramp

primary

#63131F

secondary

#379B8C

accent

#EBD13D

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0403

muted

#7E7978

Preview Lab

Preview with #63131F

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

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