#5B1813#5B1813

#5B1813 is a dark, moderate red. Relative luminance 0.029; OKLCH L 32.0% C 0.099 H 28.2°. Best body text is #FFFFFF at 13.25:1 contrast (WCAG AA passes).

Color values

HEX	#5B1813
RGB	rgb(91, 24, 19)
HSL	hsl(4, 65%, 22%)
HSV	hsv(4, 79%, 36%)
CMYK	cmyk(0%, 73.6%, 79.1%, 64.3%)
CIE-LAB	lab(19.74, 30.23, 20.73)
CIE-LCH	lch(19.74, 36.66, 34.45°)
OKLab	oklab(31.97% 0.0871 0.0468)
OKLCH	oklch(31.97% 0.099 28.2)
XYZ	xyz(4.7591, 2.9251, 0.9300)
Luminance	0.0292 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1813 #13565B

analogous

#5B1332 #5B1813 #5B3C13

triadic

#5B1813 #135B18 #18135B

tetradic

#5B1813 #325B13 #13565B #3C135B

square

#5B1813 #325B13 #13565B #3C135B

split-complementary

#5B1813 #135B3C #13325B

monochromatic

#190705 #280B08 #5B1813 #8E251E #C03328

Accessibility & contrast

On white

13.25

#5B1813 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#5B1813 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1813

13.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1813	#FFFFFF	#000000	##FFFFFF
##5B1813	1.00	13.25	1.58	13.25
#FFFFFF	13.25	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2612

Deuteranopia (green-blind)

#3C3511

Tritanopia (blue-blind)

#650417

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #5b1813;
/* rgb */ color: rgb(91, 24, 19);
/* oklch */ color: oklch(32.0% 0.099 28.2);

Tailwind

colors: {
  custom: {
    50: '#905a51',
    500: '#5b1813',
    950: '#000000',
  },
}

SCSS

$custom: #5b1813;
$custom-light: #905a51;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1813",
  "rgb": {
    "r": 91,
    "g": 24,
    "b": 19
  },
  "hsl": {
    "h": 4.167,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31971,
    "c": 0.09886,
    "h": 28.2
  },
  "luminance": 0.02924
}

Semantic roles & 50–950 ramp

primary

#5B1813

secondary

#378D93

accent

#DDE83F

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0402

muted

#7E7978

Preview Lab

Preview with #5B1813

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

Preview Lab → · Contrast checker → · Palette generator →