#5B1318#5B1318

#5B1318 is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.5% C 0.103 H 21.9°. Best body text is #FFFFFF at 13.54:1 contrast (WCAG AA passes).

Color values

HEX	#5B1318
RGB	rgb(91, 19, 24)
HSL	hsl(356, 65%, 22%)
HSV	hsv(356, 79%, 36%)
CMYK	cmyk(0%, 79.1%, 73.6%, 64.3%)
CIE-LAB	lab(19.04, 32.65, 16.56)
CIE-LCH	lch(19.04, 36.61, 26.90°)
OKLab	oklab(31.47% 0.096 0.0386)
OKLCH	oklch(31.47% 0.103 21.9)
XYZ	xyz(4.7126, 2.7565, 1.1479)
Luminance	0.0276 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1318 #135B56

analogous

#5B133C #5B1318 #5B3213

triadic

#5B1318 #185B13 #13185B

tetradic

#5B1318 #3C5B13 #135B56 #32135B

square

#5B1318 #3C5B13 #135B56 #32135B

split-complementary

#5B1318 #135B32 #133C5B

monochromatic

#190507 #28080B #5B1318 #8E1E25 #C02833

Accessibility & contrast

On white

13.54

#5B1318 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#5B1318 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1318

13.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1318	#FFFFFF	#000000	##FFFFFF
##5B1318	1.00	13.54	1.55	13.54
#FFFFFF	13.54	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282418

Deuteranopia (green-blind)

#3A3416

Tritanopia (blue-blind)

#650016

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #5b1318;
/* rgb */ color: rgb(91, 19, 24);
/* oklch */ color: oklch(31.5% 0.103 21.9);

Tailwind

colors: {
  custom: {
    50: '#8f5754',
    500: '#5b1318',
    950: '#000000',
  },
}

SCSS

$custom: #5b1318;
$custom-light: #8f5754;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1318",
  "rgb": {
    "r": 91,
    "g": 19,
    "b": 24
  },
  "hsl": {
    "h": 355.833,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31474,
    "c": 0.10345,
    "h": 21.9
  },
  "luminance": 0.02756
}

Semantic roles & 50–950 ramp

primary

#5B1318

secondary

#37938D

accent

#E8DD3F

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0302

muted

#7E7878

Preview Lab

Preview with #5B1318

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

Preview Lab → · Contrast checker → · Palette generator →