#8B181B#8B181B

#8B181B is a dark, vivid red. Relative luminance 0.062; OKLCH L 41.4% C 0.150 H 25.7°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#8B181B
RGB	rgb(139, 24, 27)
HSL	hsl(358, 71%, 32%)
HSV	hsv(358, 83%, 55%)
CMYK	cmyk(0%, 82.7%, 80.6%, 45.5%)
CIE-LAB	lab(29.97, 46.79, 29.77)
CIE-LCH	lch(29.97, 55.46, 32.46°)
OKLab	oklab(41.44% 0.1349 0.065)
OKLCH	oklch(41.44% 0.15 25.7)
XYZ	xyz(11.1733, 6.2232, 1.6496)
Luminance	0.0622 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#8B181B #188B88

analogous

#8B1855 #8B181B #8B4F18

triadic

#8B181B #1B8B18 #181B8B

tetradic

#8B181B #558B18 #188B88 #4F188B

square

#8B181B #558B18 #188B88 #4F188B

split-complementary

#8B181B #188B4F #18558B

monochromatic

#230607 #570F11 #8B181B #BF2125 #DE3F44

Accessibility & contrast

On white

9.36

#8B181B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#8B181B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #8B181B

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##8B181B	#FFFFFF	#000000	##FFFFFF
##8B181B	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D371A

Deuteranopia (green-blind)

#594F16

Tritanopia (blue-blind)

#9A001B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #8b181b;
/* rgb */ color: rgb(139, 24, 27);
/* oklch */ color: oklch(41.4% 0.150 25.7);

Tailwind

colors: {
  custom: {
    50: '#b66258',
    500: '#8b181b',
    950: '#000000',
  },
}

SCSS

$custom: #8b181b;
$custom-light: #b66258;
$custom-dark: #000000;

JSON

{
  "hex": "#8b181b",
  "rgb": {
    "r": 139,
    "g": 24,
    "b": 27
  },
  "hsl": {
    "h": 358.435,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.4144,
    "c": 0.1497,
    "h": 25.7
  },
  "luminance": 0.06221
}

Semantic roles & 50–950 ramp

primary

#8B181B

secondary

#40BEBB

accent

#EDE93A

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #8B181B

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

Preview Lab → · Contrast checker → · Palette generator →