#5B1B0D#5B1B0D

#5B1B0D is a dark, moderate red. Relative luminance 0.030; OKLCH L 32.3% C 0.097 H 33.9°. Best body text is #FFFFFF at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#5B1B0D
RGB	rgb(91, 27, 13)
HSL	hsl(11, 75%, 20%)
HSV	hsv(11, 86%, 36%)
CMYK	cmyk(0%, 70.3%, 85.7%, 64.3%)
CIE-LAB	lab(20.19, 28.54, 24.59)
CIE-LCH	lch(20.19, 37.67, 40.74°)
OKLab	oklab(32.29% 0.0805 0.0541)
OKLCH	oklch(32.29% 0.097 33.9)
XYZ	xyz(4.7795, 3.0378, 0.7154)
Luminance	0.0304 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1B0D #0D4D5B

analogous

#5B0D26 #5B1B0D #5B420D

triadic

#5B1B0D #0D5B1B #1B0D5B

tetradic

#5B1B0D #265B0D #0D4D5B #420D5B

square

#5B1B0D #265B0D #0D4D5B #420D5B

split-complementary

#5B1B0D #0D5B42 #0D265B

monochromatic

#1B0804 #250B05 #5B1B0D #912B15 #C63B1C

Accessibility & contrast

On white

13.06

#5B1B0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#5B1B0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1B0D

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1B0D	#FFFFFF	#000000	##FFFFFF
##5B1B0D	1.00	13.06	1.61	13.06
#FFFFFF	13.06	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D280B

Deuteranopia (green-blind)

#3D360A

Tritanopia (blue-blind)

#650918

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #5b1b0d;
/* rgb */ color: rgb(91, 27, 13);
/* oklch */ color: oklch(32.3% 0.097 33.9);

Tailwind

colors: {
  custom: {
    50: '#905b4d',
    500: '#5b1b0d',
    950: '#000000',
  },
}

SCSS

$custom: #5b1b0d;
$custom-light: #905b4d;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1b0d",
  "rgb": {
    "r": 91,
    "g": 27,
    "b": 13
  },
  "hsl": {
    "h": 10.769,
    "s": 75,
    "l": 20.392
  },
  "oklch": {
    "l": 0.32288,
    "c": 0.09696,
    "h": 33.9
  },
  "luminance": 0.03037
}

Semantic roles & 50–950 ramp

primary

#5B1B0D

secondary

#2F8395

accent

#D0F236

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0401

muted

#7E7977

Preview Lab

Preview with #5B1B0D

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

Preview Lab → · Contrast checker → · Palette generator →