#631812#631812

#631812 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.5% C 0.108 H 28.8°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#631812
RGB	rgb(99, 24, 18)
HSL	hsl(4, 69%, 23%)
HSV	hsv(4, 82%, 39%)
CMYK	cmyk(0%, 75.8%, 81.8%, 61.2%)
CIE-LAB	lab(21.40, 33.16, 23.66)
CIE-LCH	lch(21.40, 40.74, 35.51°)
OKLab	oklab(33.51% 0.095 0.0522)
OKLCH	oklch(33.51% 0.108 28.8)
XYZ	xyz(5.5820, 3.3504, 0.9249)
Luminance	0.0335 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631812 #125D63

analogous

#631235 #631812 #634012

triadic

#631812 #126318 #181263

tetradic

#631812 #356312 #125D63 #401263

square

#631812 #356312 #125D63 #401263

split-complementary

#631812 #126340 #123563

monochromatic

#1A0605 #2F0B09 #631812 #97251B #CB3125

Accessibility & contrast

On white

12.57

#631812 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#631812 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631812

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631812	#FFFFFF	#000000	##FFFFFF
##631812	1.00	12.57	1.67	12.57
#FFFFFF	12.57	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2911

Deuteranopia (green-blind)

#41390F

Tritanopia (blue-blind)

#6E0017

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631812;
/* rgb */ color: rgb(99, 24, 18);
/* oklch */ color: oklch(33.5% 0.108 28.8);

Tailwind

colors: {
  custom: {
    50: '#965b50',
    500: '#631812',
    950: '#000000',
  },
}

SCSS

$custom: #631812;
$custom-light: #965b50;
$custom-dark: #000000;

JSON

{
  "hex": "#631812",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 18
  },
  "hsl": {
    "h": 4.444,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.33511,
    "c": 0.10843,
    "h": 28.8
  },
  "luminance": 0.0335
}

Semantic roles & 50–950 ramp

primary

#631812

secondary

#36939B

accent

#DFEC3C

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631812

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

Preview Lab → · Contrast checker → · Palette generator →