#631C0E#631C0E

#631C0E is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.0% C 0.105 H 33.1°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#631C0E
RGB	rgb(99, 28, 14)
HSL	hsl(10, 75%, 22%)
HSV	hsv(10, 86%, 39%)
CMYK	cmyk(0%, 71.7%, 85.9%, 61.2%)
CIE-LAB	lab(22.00, 31.23, 26.53)
CIE-LCH	lch(22.00, 40.98, 40.35°)
OKLab	oklab(33.95% 0.0881 0.0575)
OKLCH	oklch(33.95% 0.105 33.1)
XYZ	xyz(5.6408, 3.5157, 0.7970)
Luminance	0.0352 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631C0E #0E5563

analogous

#630E2B #631C0E #63460E

triadic

#631C0E #0E631C #1C0E63

tetradic

#631C0E #2B630E #0E5563 #460E63

square

#631C0E #2B630E #0E5563 #460E63

split-complementary

#631C0E #0E6346 #0E2B63

monochromatic

#1B0804 #2D0D06 #631C0E #992B16 #CE3A1D

Accessibility & contrast

On white

12.33

#631C0E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#631C0E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631C0E

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631C0E	#FFFFFF	#000000	##FFFFFF
##631C0E	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312B0C

Deuteranopia (green-blind)

#423A0B

Tritanopia (blue-blind)

#6E0619

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #631c0e;
/* rgb */ color: rgb(99, 28, 14);
/* oklch */ color: oklch(34.0% 0.105 33.1);

Tailwind

colors: {
  custom: {
    50: '#965d4e',
    500: '#631c0e',
    950: '#000000',
  },
}

SCSS

$custom: #631c0e;
$custom-light: #965d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#631c0e",
  "rgb": {
    "r": 99,
    "g": 28,
    "b": 14
  },
  "hsl": {
    "h": 9.882,
    "s": 75.221,
    "l": 22.157
  },
  "oklch": {
    "l": 0.3395,
    "c": 0.10522,
    "h": 33.1
  },
  "luminance": 0.03515
}

Semantic roles & 50–950 ramp

primary

#631C0E

secondary

#308B9C

accent

#D3F236

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0401

muted

#7E7977

Preview Lab

Preview with #631C0E

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

Preview Lab → · Contrast checker → · Palette generator →