#5B211B#5B211B

#5B211B is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.4% C 0.087 H 28.5°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#5B211B
RGB	rgb(91, 33, 27)
HSL	hsl(6, 54%, 23%)
HSV	hsv(6, 70%, 36%)
CMYK	cmyk(0%, 63.7%, 70.3%, 64.3%)
CIE-LAB	lab(21.55, 26.20, 17.61)
CIE-LCH	lch(21.55, 31.57, 33.90°)
OKLab	oklab(33.37% 0.0763 0.0414)
OKLCH	oklch(33.37% 0.087 28.5)
XYZ	xyz(5.0566, 3.3917, 1.4251)
Luminance	0.0339 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B211B #1B555B

analogous

#5B1B35 #5B211B #5B411B

triadic

#5B211B #1B5B21 #211B5B

tetradic

#5B211B #355B1B #1B555B #411B5B

square

#5B211B #355B1B #1B555B #411B5B

split-complementary

#5B211B #1B5B41 #1B355B

monochromatic

#180907 #2C100D #5B211B #8A3229 #B94337

Accessibility & contrast

On white

12.51

#5B211B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#5B211B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B211B

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B211B	#FFFFFF	#000000	##FFFFFF
##5B211B	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302C1A

Deuteranopia (green-blind)

#3F381A

Tritanopia (blue-blind)

#641520

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #5b211b;
/* rgb */ color: rgb(91, 33, 27);
/* oklch */ color: oklch(33.4% 0.087 28.5);

Tailwind

colors: {
  custom: {
    50: '#8e5f57',
    500: '#5b211b',
    950: '#000000',
  },
}

SCSS

$custom: #5b211b;
$custom-light: #8e5f57;
$custom-dark: #000000;

JSON

{
  "hex": "#5b211b",
  "rgb": {
    "r": 91,
    "g": 33,
    "b": 27
  },
  "hsl": {
    "h": 5.625,
    "s": 54.237,
    "l": 23.137
  },
  "oklch": {
    "l": 0.3337,
    "c": 0.08682,
    "h": 28.5
  },
  "luminance": 0.03391
}

Semantic roles & 50–950 ramp

primary

#5B211B

secondary

#418991

accent

#D0DE4A

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0503

muted

#7E7978

Preview Lab

Preview with #5B211B

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

Preview Lab → · Contrast checker → · Palette generator →