#63231D#63231D

#63231D is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.1% C 0.094 H 28.2°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#63231D
RGB	rgb(99, 35, 29)
HSL	hsl(5, 55%, 25%)
HSV	hsv(5, 71%, 39%)
CMYK	cmyk(0%, 64.6%, 70.7%, 61.2%)
CIE-LAB	lab(23.49, 28.54, 19.00)
CIE-LCH	lch(23.49, 34.29, 33.65°)
OKLab	oklab(35.13% 0.083 0.0445)
OKLCH	oklch(35.13% 0.094 28.2)
XYZ	xyz(5.9690, 3.9442, 1.6092)
Luminance	0.0394 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63231D #1D5D63

analogous

#631D3A #63231D #63461D

triadic

#63231D #1D6323 #231D63

tetradic

#63231D #3A631D #1D5D63 #461D63

square

#63231D #3A631D #1D5D63 #461D63

split-complementary

#63231D #1D6346 #1D3A63

monochromatic

#180807 #34120F #63231D #92342B #C24439

Accessibility & contrast

On white

11.74

#63231D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#63231D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #63231D

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63231D	#FFFFFF	#000000	##FFFFFF
##63231D	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#342F1C

Deuteranopia (green-blind)

#443D1B

Tritanopia (blue-blind)

#6D1522

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #63231d;
/* rgb */ color: rgb(99, 35, 29);
/* oklch */ color: oklch(35.1% 0.094 28.2);

Tailwind

colors: {
  custom: {
    50: '#956159',
    500: '#63231d',
    950: '#000000',
  },
}

SCSS

$custom: #63231d;
$custom-light: #956159;
$custom-dark: #000000;

JSON

{
  "hex": "#63231d",
  "rgb": {
    "r": 99,
    "g": 35,
    "b": 29
  },
  "hsl": {
    "h": 5.143,
    "s": 54.688,
    "l": 25.098
  },
  "oklch": {
    "l": 0.35131,
    "c": 0.09421,
    "h": 28.2
  },
  "luminance": 0.03943
}

Semantic roles & 50–950 ramp

primary

#63231D

secondary

#449198

accent

#D1DE4A

background

#F9F5F5

surface

#F2EAE9

border

#CCC6C5

text

#0E0503

muted

#7E7978

Preview Lab

Preview with #63231D

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

Preview Lab → · Contrast checker → · Palette generator →