#73131B#73131B

#73131B is a dark, vivid red. Relative luminance 0.042; OKLCH L 36.3% C 0.129 H 22.8°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#73131B
RGB	rgb(115, 19, 27)
HSL	hsl(355, 72%, 26%)
HSV	hsv(355, 83%, 45%)
CMYK	cmyk(0%, 83.5%, 76.5%, 54.9%)
CIE-LAB	lab(24.29, 40.80, 22.06)
CIE-LCH	lch(24.29, 46.38, 28.40°)
OKLab	oklab(36.32% 0.1191 0.05)
OKLCH	oklch(36.32% 0.129 22.8)
XYZ	xyz(7.5018, 4.1909, 1.4506)
Luminance	0.0419 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#73131B #13736B

analogous

#73134B #73131B #733B13

triadic

#73131B #1B7313 #131B73

tetradic

#73131B #4B7313 #13736B #3B1373

square

#73131B #4B7313 #13736B #3B1373

split-complementary

#73131B #13733B #134B73

monochromatic

#1A0406 #3E0A0F #73131B #A81C27 #DB2535

Accessibility & contrast

On white

11.43

#73131B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#73131B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #73131B

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##73131B	#FFFFFF	#000000	##FFFFFF
##73131B	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312D1A

Deuteranopia (green-blind)

#494118

Tritanopia (blue-blind)

#7F0017

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #73131b;
/* rgb */ color: rgb(115, 19, 27);
/* oklch */ color: oklch(36.3% 0.129 22.8);

Tailwind

colors: {
  custom: {
    50: '#a35c57',
    500: '#73131b',
    950: '#000000',
  },
}

SCSS

$custom: #73131b;
$custom-light: #a35c57;
$custom-dark: #000000;

JSON

{
  "hex": "#73131b",
  "rgb": {
    "r": 115,
    "g": 19,
    "b": 27
  },
  "hsl": {
    "h": 355,
    "s": 71.642,
    "l": 26.275
  },
  "oklch": {
    "l": 0.3632,
    "c": 0.12919,
    "h": 22.8
  },
  "luminance": 0.0419
}

Semantic roles & 50–950 ramp

primary

#73131B

secondary

#38AAA0

accent

#EEDF39

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100403

muted

#7F7978

Preview Lab

Preview with #73131B

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

Preview Lab → · Contrast checker → · Palette generator →