#73151B#73151B

#73151B is a dark, vivid red. Relative luminance 0.043; OKLCH L 36.5% C 0.128 H 23.4°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#73151B
RGB	rgb(115, 21, 27)
HSL	hsl(356, 69%, 27%)
HSV	hsv(356, 82%, 45%)
CMYK	cmyk(0%, 81.7%, 76.5%, 54.9%)
CIE-LAB	lab(24.52, 40.17, 22.32)
CIE-LCH	lch(24.52, 45.95, 29.06°)
OKLab	oklab(36.49% 0.1171 0.0506)
OKLCH	oklch(36.49% 0.128 23.4)
XYZ	xyz(7.5371, 4.2615, 1.4624)
Luminance	0.0426 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#73151B #15736D

analogous

#73154A #73151B #733E15

triadic

#73151B #1B7315 #151B73

tetradic

#73151B #4A7315 #15736D #3E1573

square

#73151B #4A7315 #15736D #3E1573

split-complementary

#73151B #15733E #154A73

monochromatic

#1A0506 #3F0C0F #73151B #A71E27 #D82A35

Accessibility & contrast

On white

11.34

#73151B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#73151B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #73151B

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##73151B	#FFFFFF	#000000	##FFFFFF
##73151B	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#322D1A

Deuteranopia (green-blind)

#494118

Tritanopia (blue-blind)

#7F0018

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #73151b;
/* rgb */ color: rgb(115, 21, 27);
/* oklch */ color: oklch(36.5% 0.128 23.4);

Tailwind

colors: {
  custom: {
    50: '#a35c57',
    500: '#73151b',
    950: '#000000',
  },
}

SCSS

$custom: #73151b;
$custom-light: #a35c57;
$custom-dark: #000000;

JSON

{
  "hex": "#73151b",
  "rgb": {
    "r": 115,
    "g": 21,
    "b": 27
  },
  "hsl": {
    "h": 356.17,
    "s": 69.118,
    "l": 26.667
  },
  "oklch": {
    "l": 0.36487,
    "c": 0.12757,
    "h": 23.4
  },
  "luminance": 0.0426
}

Semantic roles & 50–950 ramp

primary

#73151B

secondary

#3BA9A2

accent

#ECE13C

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100403

muted

#7F7978

Preview Lab

Preview with #73151B

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

Preview Lab → · Contrast checker → · Palette generator →