#5B151A#5B151A

#5B151A is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.7% C 0.101 H 21.3°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#5B151A
RGB	rgb(91, 21, 26)
HSL	hsl(356, 63%, 22%)
HSV	hsv(356, 77%, 36%)
CMYK	cmyk(0%, 76.9%, 71.4%, 64.3%)
CIE-LAB	lab(19.37, 31.95, 15.59)
CIE-LCH	lch(19.37, 35.55, 26.02°)
OKLab	oklab(31.73% 0.0942 0.0368)
OKLCH	oklch(31.73% 0.101 21.3)
XYZ	xyz(4.7695, 2.8358, 1.2733)
Luminance	0.0284 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B151A #155B56

analogous

#5B153D #5B151A #5B3315

triadic

#5B151A #1A5B15 #151A5B

tetradic

#5B151A #3D5B15 #155B56 #33155B

square

#5B151A #3D5B15 #155B56 #33155B

split-complementary

#5B151A #155B33 #153D5B

monochromatic

#190607 #290A0C #5B151A #8D2028 #BE2C36

Accessibility & contrast

On white

13.40

#5B151A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#5B151A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B151A

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B151A	#FFFFFF	#000000	##FFFFFF
##5B151A	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29251A

Deuteranopia (green-blind)

#3A3418

Tritanopia (blue-blind)

#650117

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5b151a;
/* rgb */ color: rgb(91, 21, 26);
/* oklch */ color: oklch(31.7% 0.101 21.3);

Tailwind

colors: {
  custom: {
    50: '#8f5856',
    500: '#5b151a',
    950: '#000000',
  },
}

SCSS

$custom: #5b151a;
$custom-light: #8f5856;
$custom-dark: #000000;

JSON

{
  "hex": "#5b151a",
  "rgb": {
    "r": 91,
    "g": 21,
    "b": 26
  },
  "hsl": {
    "h": 355.714,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.31733,
    "c": 0.10114,
    "h": 21.3
  },
  "luminance": 0.02835
}

Semantic roles & 50–950 ramp

primary

#5B151A

secondary

#39928C

accent

#E6DA42

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5B151A

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

Preview Lab → · Contrast checker → · Palette generator →