#591B0D#591B0D

#591B0D is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.9% C 0.095 H 34.2°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#591B0D
RGB	rgb(89, 27, 13)
HSL	hsl(11, 75%, 20%)
HSV	hsv(11, 85%, 35%)
CMYK	cmyk(0%, 69.7%, 85.4%, 65.1%)
CIE-LAB	lab(19.79, 27.74, 24.02)
CIE-LCH	lch(19.79, 36.69, 40.89°)
OKLab	oklab(31.91% 0.0782 0.0531)
OKLCH	oklch(31.91% 0.095 34.2)
XYZ	xyz(4.5849, 2.9374, 0.7062)
Luminance	0.0294 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#591B0D #0D4B59

analogous

#590D25 #591B0D #59410D

triadic

#591B0D #0D591B #1B0D59

tetradic

#591B0D #25590D #0D4B59 #410D59

square

#591B0D #25590D #0D4B59 #410D59

split-complementary

#591B0D #0D5941 #0D2559

monochromatic

#1B0804 #240B05 #591B0D #8E2B15 #C43B1D

Accessibility & contrast

On white

13.23

#591B0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#591B0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #591B0D

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##591B0D	#FFFFFF	#000000	##FFFFFF
##591B0D	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D270B

Deuteranopia (green-blind)

#3C350B

Tritanopia (blue-blind)

#630A18

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #591b0d;
/* rgb */ color: rgb(89, 27, 13);
/* oklch */ color: oklch(31.9% 0.095 34.2);

Tailwind

colors: {
  custom: {
    50: '#8e5b4d',
    500: '#591b0d',
    950: '#000000',
  },
}

SCSS

$custom: #591b0d;
$custom-light: #8e5b4d;
$custom-dark: #000000;

JSON

{
  "hex": "#591b0d",
  "rgb": {
    "r": 89,
    "g": 27,
    "b": 13
  },
  "hsl": {
    "h": 11.053,
    "s": 74.51,
    "l": 20
  },
  "oklch": {
    "l": 0.3191,
    "c": 0.09455,
    "h": 34.2
  },
  "luminance": 0.02937
}

Semantic roles & 50–950 ramp

primary

#591B0D

secondary

#2E8193

accent

#CFF137

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0D0401

muted

#7E7977

Preview Lab

Preview with #591B0D

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

Preview Lab → · Contrast checker → · Palette generator →