#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
RGBrgb(99, 28, 14)
HSLhsl(10, 75%, 22%)
HSVhsv(10, 86%, 39%)
CMYKcmyk(0%, 71.7%, 85.9%, 61.2%)
CIE-LABlab(22.00, 31.23, 26.53)
CIE-LCHlch(22.00, 40.98, 40.35°)
OKLaboklab(33.95% 0.0881 0.0575)
OKLCHoklch(33.95% 0.105 33.1)
XYZxyz(5.6408, 3.5157, 0.7970)
Luminance0.0352 (WCAG relative)
Temperaturewarm
Familyred

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
##631C0E1.0012.331.7012.33
#FFFFFF12.331.0021.001.00
#0000001.7021.001.0021.00
##FFFFFF12.331.0021.001.00

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 →

#631C0E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva