#581F18#581F18

#581F18 is a dark, moderate red. Relative luminance 0.031; OKLCH L 32.5% C 0.086 H 29.5°. Best body text is #FFFFFF at 12.93:1 contrast (WCAG AA passes).

Color values

HEX	#581F18
RGB	rgb(88, 31, 24)
HSL	hsl(7, 57%, 22%)
HSV	hsv(7, 73%, 35%)
CMYK	cmyk(0%, 64.8%, 72.7%, 65.5%)
CIE-LAB	lab(20.52, 25.83, 18.22)
CIE-LCH	lch(20.52, 31.61, 35.19°)
OKLab	oklab(32.47% 0.0749 0.0424)
OKLCH	oklch(32.47% 0.086 29.5)
XYZ	xyz(4.6798, 3.1213, 1.2200)
Luminance	0.0312 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581F18 #185158

analogous

#581831 #581F18 #583F18

triadic

#581F18 #18581F #1F1858

tetradic

#581F18 #315818 #185158 #3F1858

square

#581F18 #315818 #185158 #3F1858

split-complementary

#581F18 #18583F #183158

monochromatic

#180807 #280E0B #581F18 #883025 #B84132

Accessibility & contrast

On white

12.93

#581F18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#581F18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581F18

12.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581F18	#FFFFFF	#000000	##FFFFFF
##581F18	1.00	12.93	1.62	12.93
#FFFFFF	12.93	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2A17

Deuteranopia (green-blind)

#3C3616

Tritanopia (blue-blind)

#61131E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #581f18;
/* rgb */ color: rgb(88, 31, 24);
/* oklch */ color: oklch(32.5% 0.086 29.5);

Tailwind

colors: {
  custom: {
    50: '#8c5d55',
    500: '#581f18',
    950: '#000000',
  },
}

SCSS

$custom: #581f18;
$custom-light: #8c5d55;
$custom-dark: #000000;

JSON

{
  "hex": "#581f18",
  "rgb": {
    "r": 88,
    "g": 31,
    "b": 24
  },
  "hsl": {
    "h": 6.563,
    "s": 57.143,
    "l": 21.961
  },
  "oklch": {
    "l": 0.32471,
    "c": 0.08606,
    "h": 29.5
  },
  "luminance": 0.03121
}

Semantic roles & 50–950 ramp

primary

#581F18

secondary

#3D868F

accent

#D0E047

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #581F18

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

Preview Lab → · Contrast checker → · Palette generator →