#631D2E#631D2E

#631D2E is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.7% C 0.101 H 9.5°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#631D2E
RGB	rgb(99, 29, 46)
HSL	hsl(345, 55%, 25%)
HSV	hsv(345, 71%, 39%)
CMYK	cmyk(0%, 70.7%, 53.5%, 61.2%)
CIE-LAB	lab(22.76, 32.90, 6.52)
CIE-LCH	lch(22.76, 33.54, 11.21°)
OKLab	oklab(34.7% 0.0999 0.0168)
OKLCH	oklch(34.7% 0.101 9.5)
XYZ	xyz(6.0786, 3.7294, 2.9840)
Luminance	0.0373 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631D2E #1D6352

analogous

#631D51 #631D2E #632F1D

triadic

#631D2E #2E631D #1D2E63

tetradic

#631D2E #51631D #1D6352 #2F1D63

square

#631D2E #51631D #1D6352 #2F1D63

split-complementary

#631D2E #1D632F #1D5163

monochromatic

#18070B #340F18 #631D2E #922B44 #C2395A

Accessibility & contrast

On white

12.03

#631D2E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#631D2E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631D2E

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631D2E	#FFFFFF	#000000	##FFFFFF
##631D2E	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2D2E

Deuteranopia (green-blind)

#3F3C2C

Tritanopia (blue-blind)

#6C1124

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #631d2e;
/* rgb */ color: rgb(99, 29, 46);
/* oklch */ color: oklch(34.7% 0.101 9.5);

Tailwind

colors: {
  custom: {
    50: '#945e66',
    500: '#631d2e',
    950: '#000000',
  },
}

SCSS

$custom: #631d2e;
$custom-light: #945e66;
$custom-dark: #000000;

JSON

{
  "hex": "#631d2e",
  "rgb": {
    "r": 99,
    "g": 29,
    "b": 46
  },
  "hsl": {
    "h": 345.429,
    "s": 54.688,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34703,
    "c": 0.10129,
    "h": 9.5
  },
  "luminance": 0.03729
}

Semantic roles & 50–950 ramp

primary

#631D2E

secondary

#449884

accent

#DEBA4A

background

#F9F5F6

surface

#F2E9EB

border

#CCC5C6

text

#0E0505

muted

#7E797A

Preview Lab

Preview with #631D2E

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

Preview Lab → · Contrast checker → · Palette generator →