#5B0F10#5B0F10

#5B0F10 is a dark, moderate red. Relative luminance 0.026; OKLCH L 30.9% C 0.108 H 25.7°. Best body text is #FFFFFF at 13.81:1 contrast (WCAG AA passes).

Color values

HEX	#5B0F10
RGB	rgb(91, 15, 16)
HSL	hsl(359, 72%, 21%)
HSV	hsv(359, 84%, 36%)
CMYK	cmyk(0%, 83.5%, 82.4%, 64.3%)
CIE-LAB	lab(18.38, 33.74, 20.94)
CIE-LCH	lch(18.38, 39.71, 31.83°)
OKLab	oklab(30.94% 0.0974 0.0469)
OKLCH	oklch(30.94% 0.108 25.7)
XYZ	xyz(4.5793, 2.6039, 0.7516)
Luminance	0.0260 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B0F10 #0F5B5A

analogous

#5B0F36 #5B0F10 #5B340F

triadic

#5B0F10 #105B0F #0F105B

tetradic

#5B0F10 #365B0F #0F5B5A #340F5B

square

#5B0F10 #365B0F #0F5B5A #340F5B

split-complementary

#5B0F10 #0F5B34 #0F365B

monochromatic

#1A0405 #260607 #5B0F10 #901819 #C42022

Accessibility & contrast

On white

13.81

#5B0F10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#5B0F10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B0F10

13.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B0F10	#FFFFFF	#000000	##FFFFFF
##5B0F10	1.00	13.81	1.52	13.81
#FFFFFF	13.81	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27220F

Deuteranopia (green-blind)

#39330D

Tritanopia (blue-blind)

#650010

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5b0f10;
/* rgb */ color: rgb(91, 15, 16);
/* oklch */ color: oklch(30.9% 0.108 25.7);

Tailwind

colors: {
  custom: {
    50: '#90554e',
    500: '#5b0f10',
    950: '#000000',
  },
}

SCSS

$custom: #5b0f10;
$custom-light: #90554e;
$custom-dark: #000000;

JSON

{
  "hex": "#5b0f10",
  "rgb": {
    "r": 91,
    "g": 15,
    "b": 16
  },
  "hsl": {
    "h": 359.211,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.30944,
    "c": 0.10814,
    "h": 25.7
  },
  "luminance": 0.02603
}

Semantic roles & 50–950 ramp

primary

#5B0F10

secondary

#319593

accent

#EEEC39

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0301

muted

#7E7877

Preview Lab

Preview with #5B0F10

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

Preview Lab → · Contrast checker → · Palette generator →