#851718#851718

#851718 is a dark, vivid red. Relative luminance 0.057; OKLCH L 40.2% C 0.145 H 26.4°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#851718
RGB	rgb(133, 23, 24)
HSL	hsl(359, 71%, 31%)
HSV	hsv(359, 83%, 52%)
CMYK	cmyk(0%, 82.7%, 82%, 47.8%)
CIE-LAB	lab(28.56, 45.13, 29.70)
CIE-LCH	lch(28.56, 54.03, 33.35°)
OKLab	oklab(40.16% 0.1297 0.0644)
OKLCH	oklch(40.16% 0.145 26.4)
XYZ	xyz(10.1454, 5.6669, 1.4236)
Luminance	0.0566 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#851718 #178584

analogous

#85174F #851718 #854D17

triadic

#851718 #188517 #171885

tetradic

#851718 #4F8517 #178584 #4D1785

square

#851718 #4F8517 #178584 #4D1785

split-complementary

#851718 #17854D #174F85

monochromatic

#1D0505 #510E0F #851718 #B92021 #DD3A3B

Accessibility & contrast

On white

9.85

#851718 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#851718 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #851718

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##851718	#FFFFFF	#000000	##FFFFFF
##851718	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3416

Deuteranopia (green-blind)

#554C13

Tritanopia (blue-blind)

#930019

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #851718;
/* rgb */ color: rgb(133, 23, 24);
/* oklch */ color: oklch(40.2% 0.145 26.4);

Tailwind

colors: {
  custom: {
    50: '#b16055',
    500: '#851718',
    950: '#000000',
  },
}

SCSS

$custom: #851718;
$custom-light: #b16055;
$custom-dark: #000000;

JSON

{
  "hex": "#851718",
  "rgb": {
    "r": 133,
    "g": 23,
    "b": 24
  },
  "hsl": {
    "h": 359.455,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.40156,
    "c": 0.14479,
    "h": 26.4
  },
  "luminance": 0.05665
}

Semantic roles & 50–950 ramp

primary

#851718

secondary

#3FB9B8

accent

#EDEC3B

background

#FBF6F5

surface

#F7EBE9

border

#D0C6C5

text

#120503

muted

#817A78

Preview Lab

Preview with #851718

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

Preview Lab → · Contrast checker → · Palette generator →