#631D22#631D22

#631D22 is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.4% C 0.101 H 20.2°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#631D22
RGB	rgb(99, 29, 34)
HSL	hsl(356, 55%, 25%)
HSV	hsv(356, 71%, 39%)
CMYK	cmyk(0%, 70.7%, 65.7%, 61.2%)
CIE-LAB	lab(22.47, 31.86, 14.38)
CIE-LCH	lch(22.47, 34.96, 24.29°)
OKLab	oklab(34.4% 0.0946 0.0347)
OKLCH	oklch(34.4% 0.101 20.2)
XYZ	xyz(5.8743, 3.6477, 1.9078)
Luminance	0.0365 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631D22 #1D635E

analogous

#631D45 #631D22 #633B1D

triadic

#631D22 #22631D #1D2263

tetradic

#631D22 #45631D #1D635E #3B1D63

square

#631D22 #45631D #1D635E #3B1D63

split-complementary

#631D22 #1D633B #1D4563

monochromatic

#180708 #340F12 #631D22 #922B32 #C23943

Accessibility & contrast

On white

12.14

#631D22 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#631D22 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631D22

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631D22	#FFFFFF	#000000	##FFFFFF
##631D22	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2C22

Deuteranopia (green-blind)

#413B20

Tritanopia (blue-blind)

#6D0D1F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #631d22;
/* rgb */ color: rgb(99, 29, 34);
/* oklch */ color: oklch(34.4% 0.101 20.2);

Tailwind

colors: {
  custom: {
    50: '#955e5c',
    500: '#631d22',
    950: '#000000',
  },
}

SCSS

$custom: #631d22;
$custom-light: #955e5c;
$custom-dark: #000000;

JSON

{
  "hex": "#631d22",
  "rgb": {
    "r": 99,
    "g": 29,
    "b": 34
  },
  "hsl": {
    "h": 355.714,
    "s": 54.688,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34398,
    "c": 0.10075,
    "h": 20.2
  },
  "luminance": 0.03647
}

Semantic roles & 50–950 ramp

primary

#631D22

secondary

#449892

accent

#DED34A

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #631D22

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

Preview Lab → · Contrast checker → · Palette generator →