#631A13#631A13

#631A13 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.8% C 0.106 H 29.3°. Best body text is #FFFFFF at 12.44:1 contrast (WCAG AA passes).

Color values

HEX	#631A13
RGB	rgb(99, 26, 19)
HSL	hsl(5, 68%, 23%)
HSV	hsv(5, 81%, 39%)
CMYK	cmyk(0%, 73.7%, 80.8%, 61.2%)
CIE-LAB	lab(21.72, 32.34, 23.39)
CIE-LCH	lch(21.72, 39.91, 35.88°)
OKLab	oklab(33.76% 0.0927 0.052)
OKLCH	oklch(33.76% 0.106 29.3)
XYZ	xyz(5.6332, 3.4393, 0.9832)
Luminance	0.0344 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631A13 #135C63

analogous

#631334 #631A13 #634213

triadic

#631A13 #13631A #1A1363

tetradic

#631A13 #346313 #135C63 #421363

square

#631A13 #346313 #135C63 #421363

split-complementary

#631A13 #136342 #133463

monochromatic

#1A0705 #300D09 #631A13 #96271D #CA3527

Accessibility & contrast

On white

12.44

#631A13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#631A13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631A13

12.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631A13	#FFFFFF	#000000	##FFFFFF
##631A13	1.00	12.44	1.69	12.44
#FFFFFF	12.44	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2A12

Deuteranopia (green-blind)

#413A10

Tritanopia (blue-blind)

#6E0319

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #631a13;
/* rgb */ color: rgb(99, 26, 19);
/* oklch */ color: oklch(33.8% 0.106 29.3);

Tailwind

colors: {
  custom: {
    50: '#965c51',
    500: '#631a13',
    950: '#000000',
  },
}

SCSS

$custom: #631a13;
$custom-light: #965c51;
$custom-dark: #000000;

JSON

{
  "hex": "#631a13",
  "rgb": {
    "r": 99,
    "g": 26,
    "b": 19
  },
  "hsl": {
    "h": 5.25,
    "s": 67.797,
    "l": 23.137
  },
  "oklch": {
    "l": 0.3376,
    "c": 0.10625,
    "h": 29.3
  },
  "luminance": 0.03438
}

Semantic roles & 50–950 ramp

primary

#631A13

secondary

#37929B

accent

#DBEB3D

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631A13

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

Preview Lab → · Contrast checker → · Palette generator →