#5B1817#5B1817

#5B1817 is a dark, moderate red. Relative luminance 0.029; OKLCH L 32.0% C 0.098 H 25.3°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#5B1817
RGB	rgb(91, 24, 23)
HSL	hsl(1, 60%, 22%)
HSV	hsv(1, 75%, 36%)
CMYK	cmyk(0%, 73.6%, 74.7%, 64.3%)
CIE-LAB	lab(19.80, 30.45, 18.16)
CIE-LCH	lch(19.80, 35.45, 30.82°)
OKLab	oklab(32.04% 0.0887 0.042)
OKLCH	oklch(32.04% 0.098 25.3)
XYZ	xyz(4.7962, 2.9400, 1.1254)
Luminance	0.0294 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1817 #175A5B

analogous

#5B1738 #5B1817 #5B3A17

triadic

#5B1817 #175B18 #18175B

tetradic

#5B1817 #385B17 #175A5B #3A175B

square

#5B1817 #385B17 #175A5B #3A175B

split-complementary

#5B1817 #175B3A #17385B

monochromatic

#180606 #2A0B0B #5B1817 #8C2523 #BD3230

Accessibility & contrast

On white

13.23

#5B1817 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#5B1817 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1817

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1817	#FFFFFF	#000000	##FFFFFF
##5B1817	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)

#2B2716

Deuteranopia (green-blind)

#3B3515

Tritanopia (blue-blind)

#650518

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #5b1817;
/* rgb */ color: rgb(91, 24, 23);
/* oklch */ color: oklch(32.0% 0.098 25.3);

Tailwind

colors: {
  custom: {
    50: '#8f5a54',
    500: '#5b1817',
    950: '#000000',
  },
}

SCSS

$custom: #5b1817;
$custom-light: #8f5a54;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1817",
  "rgb": {
    "r": 91,
    "g": 24,
    "b": 23
  },
  "hsl": {
    "h": 0.882,
    "s": 59.649,
    "l": 22.353
  },
  "oklch": {
    "l": 0.32036,
    "c": 0.09818,
    "h": 25.3
  },
  "luminance": 0.02939
}

Semantic roles & 50–950 ramp

primary

#5B1817

secondary

#3C9192

accent

#E0E345

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0D0402

muted

#7E7978

Preview Lab

Preview with #5B1817

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

Preview Lab → · Contrast checker → · Palette generator →