#631D0E#631D0E

#631D0E is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.1% C 0.104 H 33.7°. Best body text is #FFFFFF at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#631D0E
RGB	rgb(99, 29, 14)
HSL	hsl(11, 75%, 22%)
HSV	hsv(11, 86%, 39%)
CMYK	cmyk(0%, 70.7%, 85.9%, 61.2%)
CIE-LAB	lab(22.17, 30.77, 26.72)
CIE-LCH	lch(22.17, 40.75, 40.97°)
OKLab	oklab(34.08% 0.0867 0.0578)
OKLCH	oklch(34.08% 0.104 33.7)
XYZ	xyz(5.6649, 3.5639, 0.8050)
Luminance	0.0356 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631D0E #0E5463

analogous

#630E2A #631D0E #63480E

triadic

#631D0E #0E631D #1D0E63

tetradic

#631D0E #2A630E #0E5463 #480E63

square

#631D0E #2A630E #0E5463 #480E63

split-complementary

#631D0E #0E6348 #0E2A63

monochromatic

#1B0804 #2D0D06 #631D0E #992D16 #CE3C1D

Accessibility & contrast

On white

12.26

#631D0E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#631D0E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631D0E

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631D0E	#FFFFFF	#000000	##FFFFFF
##631D0E	1.00	12.26	1.71	12.26
#FFFFFF	12.26	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312B0C

Deuteranopia (green-blind)

#433B0B

Tritanopia (blue-blind)

#6E081A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #631d0e;
/* rgb */ color: rgb(99, 29, 14);
/* oklch */ color: oklch(34.1% 0.104 33.7);

Tailwind

colors: {
  custom: {
    50: '#965d4e',
    500: '#631d0e',
    950: '#000000',
  },
}

SCSS

$custom: #631d0e;
$custom-light: #965d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#631d0e",
  "rgb": {
    "r": 99,
    "g": 29,
    "b": 14
  },
  "hsl": {
    "h": 10.588,
    "s": 75.221,
    "l": 22.157
  },
  "oklch": {
    "l": 0.3408,
    "c": 0.10421,
    "h": 33.7
  },
  "luminance": 0.03563
}

Semantic roles & 50–950 ramp

primary

#631D0E

secondary

#30899C

accent

#D1F236

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0401

muted

#7E7977

Preview Lab

Preview with #631D0E

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

Preview Lab → · Contrast checker → · Palette generator →