#631E2A#631E2A

#631E2A is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.7% C 0.099 H 13.7°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#631E2A
RGB	rgb(99, 30, 42)
HSL	hsl(350, 53%, 25%)
HSV	hsv(350, 70%, 39%)
CMYK	cmyk(0%, 69.7%, 57.6%, 61.2%)
CIE-LAB	lab(22.82, 32.05, 9.37)
CIE-LCH	lch(22.82, 33.39, 16.30°)
OKLab	oklab(34.72% 0.0966 0.0235)
OKLCH	oklch(34.72% 0.099 13.7)
XYZ	xyz(6.0283, 3.7492, 2.5963)
Luminance	0.0375 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631E2A #1E6357

analogous

#631E4C #631E2A #63341E

triadic

#631E2A #2A631E #1E2A63

tetradic

#631E2A #4C631E #1E6357 #341E63

square

#631E2A #4C631E #1E6357 #341E63

split-complementary

#631E2A #1E6334 #1E4C63

monochromatic

#17070A #341016 #631E2A #922C3E #C13A52

Accessibility & contrast

On white

12.00

#631E2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#631E2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631E2A

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631E2A	#FFFFFF	#000000	##FFFFFF
##631E2A	1.00	12.00	1.75	12.00
#FFFFFF	12.00	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2E2A

Deuteranopia (green-blind)

#403C28

Tritanopia (blue-blind)

#6D1123

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #631e2a;
/* rgb */ color: rgb(99, 30, 42);
/* oklch */ color: oklch(34.7% 0.099 13.7);

Tailwind

colors: {
  custom: {
    50: '#945e63',
    500: '#631e2a',
    950: '#000000',
  },
}

SCSS

$custom: #631e2a;
$custom-light: #945e63;
$custom-dark: #000000;

JSON

{
  "hex": "#631e2a",
  "rgb": {
    "r": 99,
    "g": 30,
    "b": 42
  },
  "hsl": {
    "h": 349.565,
    "s": 53.488,
    "l": 25.294
  },
  "oklch": {
    "l": 0.3472,
    "c": 0.09947,
    "h": 13.7
  },
  "luminance": 0.03748
}

Semantic roles & 50–950 ramp

primary

#631E2A

secondary

#459889

accent

#DDC34B

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0505

muted

#7E7979

Preview Lab

Preview with #631E2A

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

Preview Lab → · Contrast checker → · Palette generator →