#73181D#73181D

#73181D is a dark, vivid red. Relative luminance 0.044; OKLCH L 36.8% C 0.125 H 23.2°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#73181D
RGB	rgb(115, 24, 29)
HSL	hsl(357, 65%, 27%)
HSV	hsv(357, 79%, 45%)
CMYK	cmyk(0%, 79.1%, 74.8%, 54.9%)
CIE-LAB	lab(24.91, 39.24, 21.48)
CIE-LCH	lch(24.91, 44.73, 28.69°)
OKLab	oklab(36.79% 0.1146 0.0492)
OKLCH	oklch(36.79% 0.125 23.2)
XYZ	xyz(7.6195, 4.3880, 1.6079)
Luminance	0.0439 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#73181D #18736E

analogous

#73184B #73181D #734018

triadic

#73181D #1D7318 #181D73

tetradic

#73181D #4B7318 #18736E #401873

square

#73181D #4B7318 #18736E #401873

split-complementary

#73181D #187340 #184B73

monochromatic

#190506 #400D10 #73181D #A6232A #D4313A

Accessibility & contrast

On white

11.19

#73181D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#73181D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #73181D

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##73181D	#FFFFFF	#000000	##FFFFFF
##73181D	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#332F1C

Deuteranopia (green-blind)

#4A421A

Tritanopia (blue-blind)

#7F001B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #73181d;
/* rgb */ color: rgb(115, 24, 29);
/* oklch */ color: oklch(36.8% 0.125 23.2);

Tailwind

colors: {
  custom: {
    50: '#a25e59',
    500: '#73181d',
    950: '#000000',
  },
}

SCSS

$custom: #73181d;
$custom-light: #a25e59;
$custom-dark: #000000;

JSON

{
  "hex": "#73181d",
  "rgb": {
    "r": 115,
    "g": 24,
    "b": 29
  },
  "hsl": {
    "h": 356.703,
    "s": 65.468,
    "l": 27.255
  },
  "oklch": {
    "l": 0.36792,
    "c": 0.12473,
    "h": 23.2
  },
  "luminance": 0.04387
}

Semantic roles & 50–950 ramp

primary

#73181D

secondary

#3FA8A2

accent

#E8DF3F

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100503

muted

#7F7978

Preview Lab

Preview with #73181D

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

Preview Lab → · Contrast checker → · Palette generator →