#81151B#81151B

#81151B is a dark, vivid red. Relative luminance 0.053; OKLCH L 39.3% C 0.142 H 24.5°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#81151B
RGB	rgb(129, 21, 27)
HSL	hsl(357, 72%, 29%)
HSV	hsv(357, 84%, 51%)
CMYK	cmyk(0%, 83.7%, 79.1%, 49.4%)
CIE-LAB	lab(27.53, 44.58, 26.52)
CIE-LCH	lch(27.53, 51.87, 30.75°)
OKLab	oklab(39.25% 0.1292 0.0588)
OKLCH	oklch(39.25% 0.142 24.5)
XYZ	xyz(9.5204, 5.2841, 1.5554)
Luminance	0.0528 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#81151B #15817B

analogous

#811551 #81151B #814515

triadic

#81151B #1B8115 #151B81

tetradic

#81151B #518115 #15817B #451581

square

#81151B #518115 #15817B #451581

split-complementary

#81151B #158145 #155181

monochromatic

#1A0406 #4C0C10 #81151B #B61E26 #DE333C

Accessibility & contrast

On white

10.21

#81151B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#81151B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #81151B

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##81151B	#FFFFFF	#000000	##FFFFFF
##81151B	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38321A

Deuteranopia (green-blind)

#524917

Tritanopia (blue-blind)

#8F0019

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #81151b;
/* rgb */ color: rgb(129, 21, 27);
/* oklch */ color: oklch(39.3% 0.142 24.5);

Tailwind

colors: {
  custom: {
    50: '#ae5f57',
    500: '#81151b',
    950: '#000000',
  },
}

SCSS

$custom: #81151b;
$custom-light: #ae5f57;
$custom-dark: #000000;

JSON

{
  "hex": "#81151b",
  "rgb": {
    "r": 129,
    "g": 21,
    "b": 27
  },
  "hsl": {
    "h": 356.667,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.39254,
    "c": 0.1419,
    "h": 24.5
  },
  "luminance": 0.05283
}

Semantic roles & 50–950 ramp

primary

#81151B

secondary

#3CB6AF

accent

#EFE539

background

#FBF5F5

surface

#F6EAE9

border

#D0C6C5

text

#120503

muted

#817978

Preview Lab

Preview with #81151B

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

Preview Lab → · Contrast checker → · Palette generator →