#73181F#73181F

#73181F is a dark, vivid red. Relative luminance 0.044; OKLCH L 36.8% C 0.125 H 22.0°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#73181F
RGB	rgb(115, 24, 31)
HSL	hsl(355, 65%, 27%)
HSV	hsv(355, 79%, 45%)
CMYK	cmyk(0%, 79.1%, 73%, 54.9%)
CIE-LAB	lab(24.95, 39.34, 20.20)
CIE-LCH	lch(24.95, 44.22, 27.18°)
OKLab	oklab(36.83% 0.1154 0.0468)
OKLCH	oklch(36.83% 0.125 22)
XYZ	xyz(7.6450, 4.3982, 1.7424)
Luminance	0.0440 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#73181F #18736C

analogous

#73184C #73181F #733F18

triadic

#73181F #1F7318 #181F73

tetradic

#73181F #4C7318 #18736C #3F1873

square

#73181F #4C7318 #18736C #3F1873

split-complementary

#73181F #18733F #184C73

monochromatic

#190507 #400D11 #73181F #A6232D #D4313E

Accessibility & contrast

On white

11.17

#73181F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#73181F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #73181F

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##73181F	#FFFFFF	#000000	##FFFFFF
##73181F	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#332F1E

Deuteranopia (green-blind)

#4A421C

Tritanopia (blue-blind)

#7F001C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #73181f;
/* rgb */ color: rgb(115, 24, 31);
/* oklch */ color: oklch(36.8% 0.125 22.0);

Tailwind

colors: {
  custom: {
    50: '#a25e5a',
    500: '#73181f',
    950: '#000000',
  },
}

SCSS

$custom: #73181f;
$custom-light: #a25e5a;
$custom-dark: #000000;

JSON

{
  "hex": "#73181f",
  "rgb": {
    "r": 115,
    "g": 24,
    "b": 31
  },
  "hsl": {
    "h": 355.385,
    "s": 65.468,
    "l": 27.255
  },
  "oklch": {
    "l": 0.36825,
    "c": 0.12455,
    "h": 22
  },
  "luminance": 0.04397
}

Semantic roles & 50–950 ramp

primary

#73181F

secondary

#3FA8A0

accent

#E8DB3F

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100503

muted

#7F7978

Preview Lab

Preview with #73181F

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

Preview Lab → · Contrast checker → · Palette generator →