#631A0F#631A0F

#631A0F is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.7% C 0.107 H 31.5°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#631A0F
RGB	rgb(99, 26, 15)
HSL	hsl(8, 74%, 22%)
HSV	hsv(8, 85%, 39%)
CMYK	cmyk(0%, 73.7%, 84.8%, 61.2%)
CIE-LAB	lab(21.68, 32.18, 25.67)
CIE-LCH	lch(21.68, 41.16, 38.58°)
OKLab	oklab(33.71% 0.0913 0.0559)
OKLCH	oklch(33.71% 0.107 31.5)
XYZ	xyz(5.6019, 3.4268, 0.8183)
Luminance	0.0343 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631A0F #0F5863

analogous

#630F2E #631A0F #63440F

triadic

#631A0F #0F631A #1A0F63

tetradic

#631A0F #2E630F #0F5863 #440F63

square

#631A0F #2E630F #0F5863 #440F63

split-complementary

#631A0F #0F6344 #0F2E63

monochromatic

#1B0704 #2E0C07 #631A0F #982817 #CD361F

Accessibility & contrast

On white

12.46

#631A0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#631A0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631A0F

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631A0F	#FFFFFF	#000000	##FFFFFF
##631A0F	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2A0D

Deuteranopia (green-blind)

#413A0C

Tritanopia (blue-blind)

#6E0218

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #631a0f;
/* rgb */ color: rgb(99, 26, 15);
/* oklch */ color: oklch(33.7% 0.107 31.5);

Tailwind

colors: {
  custom: {
    50: '#965c4e',
    500: '#631a0f',
    950: '#000000',
  },
}

SCSS

$custom: #631a0f;
$custom-light: #965c4e;
$custom-dark: #000000;

JSON

{
  "hex": "#631a0f",
  "rgb": {
    "r": 99,
    "g": 26,
    "b": 15
  },
  "hsl": {
    "h": 7.857,
    "s": 73.684,
    "l": 22.353
  },
  "oklch": {
    "l": 0.33711,
    "c": 0.10701,
    "h": 31.5
  },
  "luminance": 0.03426
}

Semantic roles & 50–950 ramp

primary

#631A0F

secondary

#328E9C

accent

#D8F037

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0401

muted

#7E7977

Preview Lab

Preview with #631A0F

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

Preview Lab → · Contrast checker → · Palette generator →