#851F18#851F18

#851F18 is a dark, vivid red. Relative luminance 0.060; OKLCH L 40.9% C 0.138 H 28.7°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#851F18
RGB	rgb(133, 31, 24)
HSL	hsl(4, 69%, 31%)
HSV	hsv(4, 82%, 52%)
CMYK	cmyk(0%, 76.7%, 82%, 47.8%)
CIE-LAB	lab(29.50, 42.49, 30.66)
CIE-LCH	lch(29.50, 52.40, 35.82°)
OKLab	oklab(40.86% 0.1214 0.0665)
OKLCH	oklch(40.86% 0.138 28.7)
XYZ	xyz(10.3290, 6.0341, 1.4848)
Luminance	0.0603 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#851F18 #187E85

analogous

#851847 #851F18 #855518

triadic

#851F18 #18851F #1F1885

tetradic

#851F18 #478518 #187E85 #551885

square

#851F18 #478518 #187E85 #551885

split-complementary

#851F18 #188555 #184785

monochromatic

#1D0705 #51130F #851F18 #B92B21 #DC463C

Accessibility & contrast

On white

9.52

#851F18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#851F18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #851F18

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##851F18	#FFFFFF	#000000	##FFFFFF
##851F18	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3716

Deuteranopia (green-blind)

#574E13

Tritanopia (blue-blind)

#93001F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #851f18;
/* rgb */ color: rgb(133, 31, 24);
/* oklch */ color: oklch(40.9% 0.138 28.7);

Tailwind

colors: {
  custom: {
    50: '#b16356',
    500: '#851f18',
    950: '#000000',
  },
}

SCSS

$custom: #851f18;
$custom-light: #b16356;
$custom-dark: #000000;

JSON

{
  "hex": "#851f18",
  "rgb": {
    "r": 133,
    "g": 31,
    "b": 24
  },
  "hsl": {
    "h": 3.853,
    "s": 69.427,
    "l": 30.784
  },
  "oklch": {
    "l": 0.40857,
    "c": 0.1384,
    "h": 28.7
  },
  "luminance": 0.06032
}

Semantic roles & 50–950 ramp

primary

#851F18

secondary

#40B1B9

accent

#E1EC3C

background

#FBF6F5

surface

#F7EBE9

border

#D0C6C5

text

#120603

muted

#817A78

Preview Lab

Preview with #851F18

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

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