#73181A#73181A

#73181A is a dark, vivid red. Relative luminance 0.044; OKLCH L 36.7% C 0.125 H 24.9°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#73181A
RGB	rgb(115, 24, 26)
HSL	hsl(359, 65%, 27%)
HSV	hsv(359, 79%, 45%)
CMYK	cmyk(0%, 79.1%, 77.4%, 54.9%)
CIE-LAB	lab(24.87, 39.09, 23.37)
CIE-LCH	lch(24.87, 45.54, 30.87°)
OKLab	oklab(36.74% 0.1135 0.0526)
OKLCH	oklch(36.74% 0.125 24.9)
XYZ	xyz(7.5842, 4.3739, 1.4220)
Luminance	0.0437 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#73181A #187371

analogous

#731848 #73181A #734318

triadic

#73181A #1A7318 #181A73

tetradic

#73181A #487318 #187371 #431873

square

#73181A #487318 #187371 #431873

split-complementary

#73181A #187343 #184873

monochromatic

#190506 #400D0F #73181A #A62325 #D43135

Accessibility & contrast

On white

11.20

#73181A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#73181A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #73181A

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##73181A	#FFFFFF	#000000	##FFFFFF
##73181A	1.00	11.20	1.87	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#332E19

Deuteranopia (green-blind)

#4A4217

Tritanopia (blue-blind)

#7F001A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #73181a;
/* rgb */ color: rgb(115, 24, 26);
/* oklch */ color: oklch(36.7% 0.125 24.9);

Tailwind

colors: {
  custom: {
    50: '#a35d56',
    500: '#73181a',
    950: '#000000',
  },
}

SCSS

$custom: #73181a;
$custom-light: #a35d56;
$custom-dark: #000000;

JSON

{
  "hex": "#73181a",
  "rgb": {
    "r": 115,
    "g": 24,
    "b": 26
  },
  "hsl": {
    "h": 358.681,
    "s": 65.468,
    "l": 27.255
  },
  "oklch": {
    "l": 0.36745,
    "c": 0.12506,
    "h": 24.9
  },
  "luminance": 0.04373
}

Semantic roles & 50–950 ramp

primary

#73181A

secondary

#3FA8A6

accent

#E8E53F

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100503

muted

#7F7978

Preview Lab

Preview with #73181A

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

Preview Lab → · Contrast checker → · Palette generator →