#591D1B#591D1B

#591D1B is a dark, moderate red. Relative luminance 0.031; OKLCH L 32.4% C 0.089 H 25.3°. Best body text is #FFFFFF at 12.99:1 contrast (WCAG AA passes).

Color values

HEX	#591D1B
RGB	rgb(89, 29, 27)
HSL	hsl(2, 53%, 23%)
HSV	hsv(2, 70%, 35%)
CMYK	cmyk(0%, 67.4%, 69.7%, 65.1%)
CIE-LAB	lab(20.37, 27.50, 16.07)
CIE-LCH	lch(20.37, 31.85, 30.30°)
OKLab	oklab(32.41% 0.0806 0.0381)
OKLCH	oklch(32.41% 0.089 25.3)
XYZ	xyz(4.7575, 3.0824, 1.3811)
Luminance	0.0308 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#591D1B #1B5759

analogous

#591B38 #591D1B #593C1B

triadic

#591D1B #1B591D #1D1B59

tetradic

#591D1B #38591B #1B5759 #3C1B59

square

#591D1B #38591B #1B5759 #3C1B59

split-complementary

#591D1B #1B593C #1B3859

monochromatic

#170807 #2A0E0D #591D1B #882C29 #B73C37

Accessibility & contrast

On white

12.99

#591D1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#591D1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #591D1B

12.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##591D1B	#FFFFFF	#000000	##FFFFFF
##591D1B	1.00	12.99	1.62	12.99
#FFFFFF	12.99	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D291A

Deuteranopia (green-blind)

#3C3619

Tritanopia (blue-blind)

#62101D

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #591d1b;
/* rgb */ color: rgb(89, 29, 27);
/* oklch */ color: oklch(32.4% 0.089 25.3);

Tailwind

colors: {
  custom: {
    50: '#8d5c57',
    500: '#591d1b',
    950: '#000000',
  },
}

SCSS

$custom: #591d1b;
$custom-light: #8d5c57;
$custom-dark: #000000;

JSON

{
  "hex": "#591d1b",
  "rgb": {
    "r": 89,
    "g": 29,
    "b": 27
  },
  "hsl": {
    "h": 1.935,
    "s": 53.448,
    "l": 22.745
  },
  "oklch": {
    "l": 0.32409,
    "c": 0.08916,
    "h": 25.3
  },
  "luminance": 0.03082
}

Semantic roles & 50–950 ramp

primary

#591D1B

secondary

#418C8F

accent

#D8DD4B

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #591D1B

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

Preview Lab → · Contrast checker → · Palette generator →