#5B1815#5B1815

#5B1815 is a dark, moderate red. Relative luminance 0.029; OKLCH L 32.0% C 0.099 H 26.8°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#5B1815
RGB	rgb(91, 24, 21)
HSL	hsl(3, 63%, 22%)
HSV	hsv(3, 77%, 36%)
CMYK	cmyk(0%, 73.6%, 76.9%, 64.3%)
CIE-LAB	lab(19.77, 30.33, 19.46)
CIE-LCH	lch(19.77, 36.04, 32.68°)
OKLab	oklab(32% 0.0879 0.0444)
OKLCH	oklch(32% 0.099 26.8)
XYZ	xyz(4.7769, 2.9323, 1.0238)
Luminance	0.0293 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1815 #15585B

analogous

#5B1535 #5B1815 #5B3B15

triadic

#5B1815 #155B18 #18155B

tetradic

#5B1815 #355B15 #15585B #3B155B

square

#5B1815 #355B15 #15585B #3B155B

split-complementary

#5B1815 #155B3B #15355B

monochromatic

#190706 #290B0A #5B1815 #8D2520 #BE322C

Accessibility & contrast

On white

13.24

#5B1815 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#5B1815 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1815

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1815	#FFFFFF	#000000	##FFFFFF
##5B1815	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2714

Deuteranopia (green-blind)

#3C3513

Tritanopia (blue-blind)

#650518

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #5b1815;
/* rgb */ color: rgb(91, 24, 21);
/* oklch */ color: oklch(32.0% 0.099 26.8);

Tailwind

colors: {
  custom: {
    50: '#8f5a52',
    500: '#5b1815',
    950: '#000000',
  },
}

SCSS

$custom: #5b1815;
$custom-light: #8f5a52;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1815",
  "rgb": {
    "r": 91,
    "g": 24,
    "b": 21
  },
  "hsl": {
    "h": 2.571,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.32002,
    "c": 0.0985,
    "h": 26.8
  },
  "luminance": 0.02932
}

Semantic roles & 50–950 ramp

primary

#5B1815

secondary

#398F92

accent

#DFE642

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0402

muted

#7E7978

Preview Lab

Preview with #5B1815

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

Preview Lab → · Contrast checker → · Palette generator →