#851818#851818

#851818 is a dark, vivid red. Relative luminance 0.057; OKLCH L 40.2% C 0.144 H 26.7°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#851818
RGB	rgb(133, 24, 24)
HSL	hsl(0, 69%, 31%)
HSV	hsv(0, 82%, 52%)
CMYK	cmyk(0%, 82%, 82%, 47.8%)
CIE-LAB	lab(28.66, 44.83, 29.81)
CIE-LCH	lch(28.66, 53.84, 33.62°)
OKLab	oklab(40.23% 0.1288 0.0646)
OKLCH	oklch(40.23% 0.144 26.7)
XYZ	xyz(10.1656, 5.7074, 1.4304)
Luminance	0.0571 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#851818 #188585

analogous

#85184E #851818 #854E18

triadic

#851818 #188518 #181885

tetradic

#851818 #4E8518 #188585 #4E1885

square

#851818 #4E8518 #188585 #4E1885

split-complementary

#851818 #18854E #184E85

monochromatic

#1D0505 #510F0F #851818 #B92121 #DC3C3C

Accessibility & contrast

On white

9.81

#851818 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#851818 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #851818

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##851818	#FFFFFF	#000000	##FFFFFF
##851818	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3416

Deuteranopia (green-blind)

#554C13

Tritanopia (blue-blind)

#93001A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #851818;
/* rgb */ color: rgb(133, 24, 24);
/* oklch */ color: oklch(40.2% 0.144 26.7);

Tailwind

colors: {
  custom: {
    50: '#b16055',
    500: '#851818',
    950: '#000000',
  },
}

SCSS

$custom: #851818;
$custom-light: #b16055;
$custom-dark: #000000;

JSON

{
  "hex": "#851818",
  "rgb": {
    "r": 133,
    "g": 24,
    "b": 24
  },
  "hsl": {
    "h": 0,
    "s": 69.427,
    "l": 30.784
  },
  "oklch": {
    "l": 0.40234,
    "c": 0.14406,
    "h": 26.7
  },
  "luminance": 0.05706
}

Semantic roles & 50–950 ramp

primary

#851818

secondary

#40B9B9

accent

#ECEC3C

background

#FBF6F5

surface

#F7EBE9

border

#D0C6C5

text

#120503

muted

#817A78

Preview Lab

Preview with #851818

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

Preview Lab → · Contrast checker → · Palette generator →