#591B0F#591B0F

#591B0F is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.9% C 0.094 H 33.0°. Best body text is #FFFFFF at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#591B0F
RGB	rgb(89, 27, 15)
HSL	hsl(10, 71%, 20%)
HSV	hsv(10, 83%, 35%)
CMYK	cmyk(0%, 69.7%, 83.1%, 65.1%)
CIE-LAB	lab(19.81, 27.82, 23.04)
CIE-LCH	lch(19.81, 36.12, 39.63°)
OKLab	oklab(31.93% 0.0789 0.0512)
OKLCH	oklch(31.93% 0.094 33)
XYZ	xyz(4.5985, 2.9429, 0.7777)
Luminance	0.0294 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#591B0F #0F4D59

analogous

#590F28 #591B0F #59400F

triadic

#591B0F #0F591B #1B0F59

tetradic

#591B0F #28590F #0F4D59 #400F59

square

#591B0F #28590F #0F4D59 #400F59

split-complementary

#591B0F #0F5940 #0F2859

monochromatic

#1A0804 #250B06 #591B0F #8D2B18 #C23B21

Accessibility & contrast

On white

13.22

#591B0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#591B0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #591B0F

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##591B0F	#FFFFFF	#000000	##FFFFFF
##591B0F	1.00	13.22	1.59	13.22
#FFFFFF	13.22	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D270D

Deuteranopia (green-blind)

#3C350D

Tritanopia (blue-blind)

#630A19

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #591b0f;
/* rgb */ color: rgb(89, 27, 15);
/* oklch */ color: oklch(31.9% 0.094 33.0);

Tailwind

colors: {
  custom: {
    50: '#8e5b4e',
    500: '#591b0f',
    950: '#000000',
  },
}

SCSS

$custom: #591b0f;
$custom-light: #8e5b4e;
$custom-dark: #000000;

JSON

{
  "hex": "#591b0f",
  "rgb": {
    "r": 89,
    "g": 27,
    "b": 15
  },
  "hsl": {
    "h": 9.73,
    "s": 71.154,
    "l": 20.392
  },
  "oklch": {
    "l": 0.31933,
    "c": 0.09407,
    "h": 33
  },
  "luminance": 0.02942
}

Semantic roles & 50–950 ramp

primary

#591B0F

secondary

#318393

accent

#D1EE3A

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0D0401

muted

#7E7977

Preview Lab

Preview with #591B0F

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

Preview Lab → · Contrast checker → · Palette generator →