#5B151D#5B151D

#5B151D is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.8% C 0.101 H 18.9°. Best body text is #FFFFFF at 13.38:1 contrast (WCAG AA passes).

Color values

HEX	#5B151D
RGB	rgb(91, 21, 29)
HSL	hsl(353, 63%, 22%)
HSV	hsv(353, 77%, 36%)
CMYK	cmyk(0%, 76.9%, 68.1%, 64.3%)
CIE-LAB	lab(19.43, 32.15, 13.58)
CIE-LCH	lch(19.43, 34.90, 22.91°)
OKLab	oklab(31.8% 0.0956 0.0326)
OKLCH	oklch(31.8% 0.101 18.9)
XYZ	xyz(4.8048, 2.8499, 1.4592)
Luminance	0.0285 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B151D #155B53

analogous

#5B1540 #5B151D #5B3015

triadic

#5B151D #1D5B15 #151D5B

tetradic

#5B151D #405B15 #155B53 #30155B

square

#5B151D #405B15 #155B53 #30155B

split-complementary

#5B151D #155B30 #15405B

monochromatic

#190608 #290A0D #5B151D #8D202D #BE2C3D

Accessibility & contrast

On white

13.38

#5B151D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#5B151D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B151D

13.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B151D	#FFFFFF	#000000	##FFFFFF
##5B151D	1.00	13.38	1.57	13.38
#FFFFFF	13.38	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28261D

Deuteranopia (green-blind)

#3A341B

Tritanopia (blue-blind)

#640218

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5b151d;
/* rgb */ color: rgb(91, 21, 29);
/* oklch */ color: oklch(31.8% 0.101 18.9);

Tailwind

colors: {
  custom: {
    50: '#8f5858',
    500: '#5b151d',
    950: '#000000',
  },
}

SCSS

$custom: #5b151d;
$custom-light: #8f5858;
$custom-dark: #000000;

JSON

{
  "hex": "#5b151d",
  "rgb": {
    "r": 91,
    "g": 21,
    "b": 29
  },
  "hsl": {
    "h": 353.143,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.31796,
    "c": 0.10097,
    "h": 18.9
  },
  "luminance": 0.02849
}

Semantic roles & 50–950 ramp

primary

#5B151D

secondary

#399288

accent

#E6D342

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5B151D

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

Preview Lab → · Contrast checker → · Palette generator →