#8C181C#8C181C

#8C181C is a dark, vivid red. Relative luminance 0.063; OKLCH L 41.6% C 0.151 H 25.4°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#8C181C
RGB	rgb(140, 24, 28)
HSL	hsl(358, 71%, 32%)
HSV	hsv(358, 83%, 55%)
CMYK	cmyk(0%, 82.9%, 80%, 45.1%)
CIE-LAB	lab(30.19, 47.14, 29.46)
CIE-LCH	lch(30.19, 55.59, 32.01°)
OKLab	oklab(41.65% 0.136 0.0646)
OKLCH	oklch(41.65% 0.151 25.4)
XYZ	xyz(11.3528, 6.3144, 1.7194)
Luminance	0.0631 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#8C181C #188C88

analogous

#8C1856 #8C181C #8C4E18

triadic

#8C181C #1C8C18 #181C8C

tetradic

#8C181C #568C18 #188C88 #4E188C

square

#8C181C #568C18 #188C88 #4E188C

split-complementary

#8C181C #188C4E #18568C

monochromatic

#240607 #580F12 #8C181C #C02126 #DE4046

Accessibility & contrast

On white

9.28

#8C181C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#8C181C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #8C181C

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##8C181C	#FFFFFF	#000000	##FFFFFF
##8C181C	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D371B

Deuteranopia (green-blind)

#5A5017

Tritanopia (blue-blind)

#9B001B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #8c181c;
/* rgb */ color: rgb(140, 24, 28);
/* oklch */ color: oklch(41.6% 0.151 25.4);

Tailwind

colors: {
  custom: {
    50: '#b66258',
    500: '#8c181c',
    950: '#000000',
  },
}

SCSS

$custom: #8c181c;
$custom-light: #b66258;
$custom-dark: #000000;

JSON

{
  "hex": "#8c181c",
  "rgb": {
    "r": 140,
    "g": 24,
    "b": 28
  },
  "hsl": {
    "h": 357.931,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.41647,
    "c": 0.15058,
    "h": 25.4
  },
  "luminance": 0.06313
}

Semantic roles & 50–950 ramp

primary

#8C181C

secondary

#41BFBA

accent

#EDE73A

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #8C181C

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

Preview Lab → · Contrast checker → · Palette generator →