#631820#631820

#631820 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.8% C 0.107 H 19.2°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#631820
RGB	rgb(99, 24, 32)
HSL	hsl(354, 61%, 24%)
HSV	hsv(354, 76%, 39%)
CMYK	cmyk(0%, 75.8%, 67.7%, 61.2%)
CIE-LAB	lab(21.62, 33.94, 14.65)
CIE-LCH	lch(21.62, 36.97, 23.35°)
OKLab	oklab(33.75% 0.1008 0.0351)
OKLCH	oklch(33.75% 0.107 19.2)
XYZ	xyz(5.7335, 3.4110, 1.7227)
Luminance	0.0341 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631820 #18635B

analogous

#631846 #631820 #633618

triadic

#631820 #206318 #182063

tetradic

#631820 #466318 #18635B #361863

square

#631820 #466318 #18635B #361863

split-complementary

#631820 #186336 #184663

monochromatic

#190608 #320C10 #631820 #942430 #C63040

Accessibility & contrast

On white

12.49

#631820 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#631820 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631820

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631820	#FFFFFF	#000000	##FFFFFF
##631820	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2A20

Deuteranopia (green-blind)

#3F3A1E

Tritanopia (blue-blind)

#6D031C

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #631820;
/* rgb */ color: rgb(99, 24, 32);
/* oklch */ color: oklch(33.8% 0.107 19.2);

Tailwind

colors: {
  custom: {
    50: '#955b5b',
    500: '#631820',
    950: '#000000',
  },
}

SCSS

$custom: #631820;
$custom-light: #955b5b;
$custom-dark: #000000;

JSON

{
  "hex": "#631820",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 32
  },
  "hsl": {
    "h": 353.6,
    "s": 60.976,
    "l": 24.118
  },
  "oklch": {
    "l": 0.3375,
    "c": 0.10671,
    "h": 19.2
  },
  "luminance": 0.0341
}

Semantic roles & 50–950 ramp

primary

#631820

secondary

#3E998F

accent

#E4D344

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #631820

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

Preview Lab → · Contrast checker → · Palette generator →