#73231B#73231B

#73231B is a dark, moderate red. Relative luminance 0.049; OKLCH L 38.0% C 0.114 H 29.2°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#73231B
RGB	rgb(115, 35, 27)
HSL	hsl(5, 62%, 28%)
HSV	hsv(5, 77%, 45%)
CMYK	cmyk(0%, 69.6%, 76.5%, 54.9%)
CIE-LAB	lab(26.53, 34.63, 24.61)
CIE-LCH	lch(26.53, 42.48, 35.40°)
OKLab	oklab(37.99% 0.0996 0.0556)
OKLCH	oklch(37.99% 0.114 29.2)
XYZ	xyz(7.8700, 4.9272, 1.5733)
Luminance	0.0493 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#73231B #1B6B73

analogous

#731B3F #73231B #734F1B

triadic

#73231B #1B7323 #231B73

tetradic

#73231B #3F731B #1B6B73 #4F1B73

square

#73231B #3F731B #1B6B73 #4F1B73

split-complementary

#73231B #1B734F #1B3F73

monochromatic

#190806 #41140F #73231B #A53227 #D04638

Accessibility & contrast

On white

10.58

#73231B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#73231B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #73231B

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##73231B	#FFFFFF	#000000	##FFFFFF
##73231B	1.00	10.58	1.99	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39341A

Deuteranopia (green-blind)

#4D4518

Tritanopia (blue-blind)

#7F0C22

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #73231b;
/* rgb */ color: rgb(115, 35, 27);
/* oklch */ color: oklch(38.0% 0.114 29.2);

Tailwind

colors: {
  custom: {
    50: '#a26357',
    500: '#73231b',
    950: '#000000',
  },
}

SCSS

$custom: #73231b;
$custom-light: #a26357;
$custom-dark: #000000;

JSON

{
  "hex": "#73231b",
  "rgb": {
    "r": 115,
    "g": 35,
    "b": 27
  },
  "hsl": {
    "h": 5.455,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.37986,
    "c": 0.11406,
    "h": 29.2
  },
  "luminance": 0.04926
}

Semantic roles & 50–950 ramp

primary

#73231B

secondary

#429EA8

accent

#D6E543

background

#FAF6F5

surface

#F4EBE9

border

#CEC6C5

text

#100503

muted

#7F7A78

Preview Lab

Preview with #73231B

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

Preview Lab → · Contrast checker → · Palette generator →