#5B1810#5B1810

#5B1810 is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.9% C 0.099 H 30.2°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#5B1810
RGB	rgb(91, 24, 16)
HSL	hsl(6, 70%, 21%)
HSV	hsv(6, 82%, 36%)
CMYK	cmyk(0%, 73.6%, 82.4%, 64.3%)
CIE-LAB	lab(19.70, 30.09, 22.48)
CIE-LCH	lch(19.70, 37.56, 36.76°)
OKLab	oklab(31.93% 0.086 0.05)
OKLCH	oklch(31.93% 0.099 30.2)
XYZ	xyz(4.7351, 2.9155, 0.8035)
Luminance	0.0291 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1810 #10535B

analogous

#5B102D #5B1810 #5B3D10

triadic

#5B1810 #105B18 #18105B

tetradic

#5B1810 #2D5B10 #10535B #3D105B

square

#5B1810 #2D5B10 #10535B #3D105B

split-complementary

#5B1810 #105B3D #102D5B

monochromatic

#1A0705 #270A07 #5B1810 #8F2619 #C33322

Accessibility & contrast

On white

13.27

#5B1810 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#5B1810 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1810

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1810	#FFFFFF	#000000	##FFFFFF
##5B1810	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260F

Deuteranopia (green-blind)

#3C350D

Tritanopia (blue-blind)

#650417

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #5b1810;
/* rgb */ color: rgb(91, 24, 16);
/* oklch */ color: oklch(31.9% 0.099 30.2);

Tailwind

colors: {
  custom: {
    50: '#90594e',
    500: '#5b1810',
    950: '#000000',
  },
}

SCSS

$custom: #5b1810;
$custom-light: #90594e;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1810",
  "rgb": {
    "r": 91,
    "g": 24,
    "b": 16
  },
  "hsl": {
    "h": 6.4,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.3193,
    "c": 0.09944,
    "h": 30.2
  },
  "luminance": 0.02915
}

Semantic roles & 50–950 ramp

primary

#5B1810

secondary

#338A94

accent

#DAED3B

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0401

muted

#7E7977

Preview Lab

Preview with #5B1810

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

Preview Lab → · Contrast checker → · Palette generator →