#63231F#63231F

#63231F is a dark, moderate red. Relative luminance 0.040; OKLCH L 35.2% C 0.094 H 26.6°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#63231F
RGB	rgb(99, 35, 31)
HSL	hsl(4, 52%, 25%)
HSV	hsv(4, 69%, 39%)
CMYK	cmyk(0%, 64.6%, 68.7%, 61.2%)
CIE-LAB	lab(23.52, 28.68, 17.73)
CIE-LCH	lch(23.52, 33.72, 31.72°)
OKLab	oklab(35.17% 0.0839 0.042)
OKLCH	oklch(35.17% 0.094 26.6)
XYZ	xyz(5.9945, 3.9544, 1.7437)
Luminance	0.0395 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63231F #1F5F63

analogous

#631F3D #63231F #63451F

triadic

#63231F #1F6323 #231F63

tetradic

#63231F #3D631F #1F5F63 #451F63

square

#63231F #3D631F #1F5F63 #451F63

split-complementary

#63231F #1F6345 #1F3D63

monochromatic

#170807 #341310 #63231F #92332E #C0443C

Accessibility & contrast

On white

11.73

#63231F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#63231F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63231F

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63231F	#FFFFFF	#000000	##FFFFFF
##63231F	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#342F1E

Deuteranopia (green-blind)

#443D1D

Tritanopia (blue-blind)

#6D1622

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #63231f;
/* rgb */ color: rgb(99, 35, 31);
/* oklch */ color: oklch(35.2% 0.094 26.6);

Tailwind

colors: {
  custom: {
    50: '#94615a',
    500: '#63231f',
    950: '#000000',
  },
}

SCSS

$custom: #63231f;
$custom-light: #94615a;
$custom-dark: #000000;

JSON

{
  "hex": "#63231f",
  "rgb": {
    "r": 99,
    "g": 35,
    "b": 31
  },
  "hsl": {
    "h": 3.529,
    "s": 52.308,
    "l": 25.49
  },
  "oklch": {
    "l": 0.35167,
    "c": 0.0938,
    "h": 26.6
  },
  "luminance": 0.03954
}

Semantic roles & 50–950 ramp

primary

#63231F

secondary

#469398

accent

#D3DC4C

background

#F9F5F5

surface

#F2EAE9

border

#CCC6C5

text

#0E0504

muted

#7E7979

Preview Lab

Preview with #63231F

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

Preview Lab → · Contrast checker → · Palette generator →