#851D17#851D17

#851D17 is a dark, vivid red. Relative luminance 0.059; OKLCH L 40.7% C 0.140 H 28.4°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#851D17
RGB	rgb(133, 29, 23)
HSL	hsl(3, 71%, 31%)
HSV	hsv(3, 83%, 52%)
CMYK	cmyk(0%, 78.2%, 82.7%, 47.8%)
CIE-LAB	lab(29.23, 43.17, 30.97)
CIE-LCH	lch(29.23, 53.13, 35.66°)
OKLab	oklab(40.66% 0.1233 0.0668)
OKLCH	oklch(40.66% 0.14 28.4)
XYZ	xyz(10.2681, 5.9288, 1.4142)
Luminance	0.0593 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#851D17 #177F85

analogous

#851748 #851D17 #855417

triadic

#851D17 #17851D #1D1785

tetradic

#851D17 #488517 #177F85 #541785

square

#851D17 #488517 #177F85 #541785

split-complementary

#851D17 #178554 #174885

monochromatic

#1D0605 #51120E #851D17 #B92820 #DD423A

Accessibility & contrast

On white

9.61

#851D17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#851D17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #851D17

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##851D17	#FFFFFF	#000000	##FFFFFF
##851D17	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3615

Deuteranopia (green-blind)

#574D12

Tritanopia (blue-blind)

#93001D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #851d17;
/* rgb */ color: rgb(133, 29, 23);
/* oklch */ color: oklch(40.7% 0.140 28.4);

Tailwind

colors: {
  custom: {
    50: '#b16255',
    500: '#851d17',
    950: '#000000',
  },
}

SCSS

$custom: #851d17;
$custom-light: #b16255;
$custom-dark: #000000;

JSON

{
  "hex": "#851d17",
  "rgb": {
    "r": 133,
    "g": 29,
    "b": 23
  },
  "hsl": {
    "h": 3.273,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.40655,
    "c": 0.14025,
    "h": 28.4
  },
  "luminance": 0.05927
}

Semantic roles & 50–950 ramp

primary

#851D17

secondary

#3FB2B9

accent

#E4ED3B

background

#FBF6F4

surface

#F7EBE8

border

#D0C6C4

text

#120603

muted

#817A78

Preview Lab

Preview with #851D17

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

Preview Lab → · Contrast checker → · Palette generator →