#591B18#591B18

#591B18 is a dark, moderate red. Relative luminance 0.030; OKLCH L 32.1% C 0.092 H 26.4°. Best body text is #FFFFFF at 13.17:1 contrast (WCAG AA passes).

Color values

HEX	#591B18
RGB	rgb(89, 27, 24)
HSL	hsl(3, 58%, 22%)
HSV	hsv(3, 73%, 35%)
CMYK	cmyk(0%, 69.7%, 73%, 65.1%)
CIE-LAB	lab(19.94, 28.31, 17.56)
CIE-LCH	lch(19.94, 33.31, 31.81°)
OKLab	oklab(32.07% 0.0825 0.041)
OKLCH	oklch(32.07% 0.092 26.4)
XYZ	xyz(4.6771, 2.9743, 1.1918)
Luminance	0.0297 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#591B18 #185659

analogous

#591836 #591B18 #593C18

triadic

#591B18 #18591B #1B1859

tetradic

#591B18 #365918 #185659 #3C1859

square

#591B18 #365918 #185659 #3C1859

split-complementary

#591B18 #18593C #183659

monochromatic

#180706 #290C0B #591B18 #892A25 #B93832

Accessibility & contrast

On white

13.17

#591B18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#591B18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #591B18

13.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##591B18	#FFFFFF	#000000	##FFFFFF
##591B18	1.00	13.17	1.59	13.17
#FFFFFF	13.17	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2817

Deuteranopia (green-blind)

#3B3516

Tritanopia (blue-blind)

#620C1B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #591b18;
/* rgb */ color: rgb(89, 27, 24);
/* oklch */ color: oklch(32.1% 0.092 26.4);

Tailwind

colors: {
  custom: {
    50: '#8d5b54',
    500: '#591b18',
    950: '#000000',
  },
}

SCSS

$custom: #591b18;
$custom-light: #8d5b54;
$custom-dark: #000000;

JSON

{
  "hex": "#591b18",
  "rgb": {
    "r": 89,
    "g": 27,
    "b": 24
  },
  "hsl": {
    "h": 2.769,
    "s": 57.522,
    "l": 22.157
  },
  "oklch": {
    "l": 0.3207,
    "c": 0.0921,
    "h": 26.4
  },
  "luminance": 0.02974
}

Semantic roles & 50–950 ramp

primary

#591B18

secondary

#3D8C90

accent

#DAE147

background

#F9F5F4

surface

#F1E9E7

border

#CBC5C3

text

#0D0402

muted

#7E7978

Preview Lab

Preview with #591B18

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

Preview Lab → · Contrast checker → · Palette generator →