#5B1010#5B1010

#5B1010 is a dark, moderate red. Relative luminance 0.026; OKLCH L 31.0% C 0.107 H 26.1°. Best body text is #FFFFFF at 13.76:1 contrast (WCAG AA passes).

Color values

HEX	#5B1010
RGB	rgb(91, 16, 16)
HSL	hsl(0, 70%, 21%)
HSV	hsv(0, 82%, 36%)
CMYK	cmyk(0%, 82.4%, 82.4%, 64.3%)
CIE-LAB	lab(18.51, 33.38, 21.09)
CIE-LCH	lch(18.51, 39.49, 32.29°)
OKLab	oklab(31.04% 0.0963 0.0472)
OKLCH	oklch(31.04% 0.107 26.1)
XYZ	xyz(4.5937, 2.6329, 0.7564)
Luminance	0.0263 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B1010 #105B5B

analogous

#5B1035 #5B1010 #5B3510

triadic

#5B1010 #105B10 #10105B

tetradic

#5B1010 #355B10 #105B5B #35105B

square

#5B1010 #355B10 #105B5B #35105B

split-complementary

#5B1010 #105B35 #10355B

monochromatic

#1A0505 #270707 #5B1010 #8F1919 #C32222

Accessibility & contrast

On white

13.76

#5B1010 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#5B1010 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B1010

13.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B1010	#FFFFFF	#000000	##FFFFFF
##5B1010	1.00	13.76	1.53	13.76
#FFFFFF	13.76	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27230F

Deuteranopia (green-blind)

#3A330D

Tritanopia (blue-blind)

#650011

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5b1010;
/* rgb */ color: rgb(91, 16, 16);
/* oklch */ color: oklch(31.0% 0.107 26.1);

Tailwind

colors: {
  custom: {
    50: '#90564e',
    500: '#5b1010',
    950: '#000000',
  },
}

SCSS

$custom: #5b1010;
$custom-light: #90564e;
$custom-dark: #000000;

JSON

{
  "hex": "#5b1010",
  "rgb": {
    "r": 91,
    "g": 16,
    "b": 16
  },
  "hsl": {
    "h": 0,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.31039,
    "c": 0.10727,
    "h": 26.1
  },
  "luminance": 0.02632
}

Semantic roles & 50–950 ramp

primary

#5B1010

secondary

#339494

accent

#EDED3B

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0301

muted

#7E7877

Preview Lab

Preview with #5B1010

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

Preview Lab → · Contrast checker → · Palette generator →