#73181C#73181C

#73181C is a dark, vivid red. Relative luminance 0.044; OKLCH L 36.8% C 0.125 H 23.8°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#73181C
RGB	rgb(115, 24, 28)
HSL	hsl(357, 65%, 27%)
HSV	hsv(357, 79%, 45%)
CMYK	cmyk(0%, 79.1%, 75.7%, 54.9%)
CIE-LAB	lab(24.90, 39.19, 22.11)
CIE-LCH	lch(24.90, 44.99, 29.43°)
OKLab	oklab(36.78% 0.1142 0.0504)
OKLCH	oklch(36.78% 0.125 23.8)
XYZ	xyz(7.6073, 4.3831, 1.5438)
Luminance	0.0438 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#73181C #18736F

analogous

#731849 #73181C #734218

triadic

#73181C #1C7318 #181C73

tetradic

#73181C #497318 #18736F #421873

square

#73181C #497318 #18736F #421873

split-complementary

#73181C #187342 #184973

monochromatic

#190506 #400D10 #73181C #A62328 #D43138

Accessibility & contrast

On white

11.19

#73181C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#73181C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #73181C

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##73181C	#FFFFFF	#000000	##FFFFFF
##73181C	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)

#332F1B

Deuteranopia (green-blind)

#4A4219

Tritanopia (blue-blind)

#7F001B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #73181c;
/* rgb */ color: rgb(115, 24, 28);
/* oklch */ color: oklch(36.8% 0.125 23.8);

Tailwind

colors: {
  custom: {
    50: '#a25e58',
    500: '#73181c',
    950: '#000000',
  },
}

SCSS

$custom: #73181c;
$custom-light: #a25e58;
$custom-dark: #000000;

JSON

{
  "hex": "#73181c",
  "rgb": {
    "r": 115,
    "g": 24,
    "b": 28
  },
  "hsl": {
    "h": 357.363,
    "s": 65.468,
    "l": 27.255
  },
  "oklch": {
    "l": 0.36776,
    "c": 0.12483,
    "h": 23.8
  },
  "luminance": 0.04382
}

Semantic roles & 50–950 ramp

primary

#73181C

secondary

#3FA8A4

accent

#E8E13F

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#100503

muted

#7F7978

Preview Lab

Preview with #73181C

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

Preview Lab → · Contrast checker → · Palette generator →