#591C1B#591C1B

#591C1B is a dark, moderate red. Relative luminance 0.030; OKLCH L 32.3% C 0.090 H 24.5°. Best body text is #FFFFFF at 13.07:1 contrast (WCAG AA passes).

Color values

HEX	#591C1B
RGB	rgb(89, 28, 27)
HSL	hsl(1, 53%, 23%)
HSV	hsv(1, 70%, 35%)
CMYK	cmyk(0%, 68.5%, 69.7%, 65.1%)
CIE-LAB	lab(20.18, 28.01, 15.83)
CIE-LCH	lch(20.18, 32.17, 29.47°)
OKLab	oklab(32.27% 0.0822 0.0375)
OKLCH	oklch(32.27% 0.09 24.5)
XYZ	xyz(4.7334, 3.0341, 1.3731)
Luminance	0.0303 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#591C1B #1B5859

analogous

#591B39 #591C1B #593B1B

triadic

#591C1B #1B591C #1C1B59

tetradic

#591C1B #39591B #1B5859 #3B1B59

square

#591C1B #39591B #1B5859 #3B1B59

split-complementary

#591C1B #1B593B #1B3959

monochromatic

#170707 #2A0D0D #591C1B #882B29 #B73A37

Accessibility & contrast

On white

13.07

#591C1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#591C1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #591C1B

13.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##591C1B	#FFFFFF	#000000	##FFFFFF
##591C1B	1.00	13.07	1.61	13.07
#FFFFFF	13.07	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C281A

Deuteranopia (green-blind)

#3B3619

Tritanopia (blue-blind)

#620F1C

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #591c1b;
/* rgb */ color: rgb(89, 28, 27);
/* oklch */ color: oklch(32.3% 0.090 24.5);

Tailwind

colors: {
  custom: {
    50: '#8d5c57',
    500: '#591c1b',
    950: '#000000',
  },
}

SCSS

$custom: #591c1b;
$custom-light: #8d5c57;
$custom-dark: #000000;

JSON

{
  "hex": "#591c1b",
  "rgb": {
    "r": 89,
    "g": 28,
    "b": 27
  },
  "hsl": {
    "h": 0.968,
    "s": 53.448,
    "l": 22.745
  },
  "oklch": {
    "l": 0.32266,
    "c": 0.09039,
    "h": 24.5
  },
  "luminance": 0.03033
}

Semantic roles & 50–950 ramp

primary

#591C1B

secondary

#418E8F

accent

#DADD4B

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #591C1B

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

Preview Lab → · Contrast checker → · Palette generator →