#78181B#78181B

#78181B is a dark, vivid red. Relative luminance 0.047; OKLCH L 37.7% C 0.130 H 24.7°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#78181B
RGB	rgb(120, 24, 27)
HSL	hsl(358, 67%, 28%)
HSV	hsv(358, 80%, 47%)
CMYK	cmyk(0%, 80%, 77.5%, 52.9%)
CIE-LAB	lab(25.94, 40.79, 24.23)
CIE-LCH	lch(25.94, 47.44, 30.71°)
OKLab	oklab(37.74% 0.1184 0.0544)
OKLCH	oklch(37.74% 0.13 24.7)
XYZ	xyz(8.2712, 4.7268, 1.5135)
Luminance	0.0473 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#78181B #187875

analogous

#78184B #78181B #784518

triadic

#78181B #1B7818 #181B78

tetradic

#78181B #4B7818 #187875 #451878

square

#78181B #4B7818 #187875 #451878

split-complementary

#78181B #187845 #184B78

monochromatic

#1A0506 #450E10 #78181B #AB2226 #D63439

Accessibility & contrast

On white

10.80

#78181B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#78181B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #78181B

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##78181B	#FFFFFF	#000000	##FFFFFF
##78181B	1.00	10.80	1.95	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#35301A

Deuteranopia (green-blind)

#4D4517

Tritanopia (blue-blind)

#85001A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #78181b;
/* rgb */ color: rgb(120, 24, 27);
/* oklch */ color: oklch(37.7% 0.130 24.7);

Tailwind

colors: {
  custom: {
    50: '#a75e57',
    500: '#78181b',
    950: '#000000',
  },
}

SCSS

$custom: #78181b;
$custom-light: #a75e57;
$custom-dark: #000000;

JSON

{
  "hex": "#78181b",
  "rgb": {
    "r": 120,
    "g": 24,
    "b": 27
  },
  "hsl": {
    "h": 358.125,
    "s": 66.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.37735,
    "c": 0.13029,
    "h": 24.7
  },
  "luminance": 0.04725
}

Semantic roles & 50–950 ramp

primary

#78181B

secondary

#3FADA9

accent

#EAE43E

background

#FBF5F5

surface

#F6EAE9

border

#D0C6C5

text

#110503

muted

#807978

Preview Lab

Preview with #78181B

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

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