#5B170C#5B170C

#5B170C is a dark, moderate red. Relative luminance 0.029; OKLCH L 31.8% C 0.101 H 31.9°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#5B170C
RGB	rgb(91, 23, 12)
HSL	hsl(8, 77%, 20%)
HSV	hsv(8, 87%, 36%)
CMYK	cmyk(0%, 74.7%, 86.8%, 64.3%)
CIE-LAB	lab(19.49, 30.38, 24.25)
CIE-LCH	lch(19.49, 38.88, 38.60°)
OKLab	oklab(31.76% 0.086 0.0535)
OKLCH	oklch(31.76% 0.101 31.9)
XYZ	xyz(4.6877, 2.8642, 0.6538)
Luminance	0.0286 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B170C #0C505B

analogous

#5B0C29 #5B170C #5B3E0C

triadic

#5B170C #0C5B17 #170C5B

tetradic

#5B170C #295B0C #0C505B #3E0C5B

square

#5B170C #295B0C #0C505B #3E0C5B

split-complementary

#5B170C #0C5B3E #0C295B

monochromatic

#1B0704 #250905 #5B170C #912513 #C7321A

Accessibility & contrast

On white

13.35

#5B170C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#5B170C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B170C

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B170C	#FFFFFF	#000000	##FFFFFF
##5B170C	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B260A

Deuteranopia (green-blind)

#3C3509

Tritanopia (blue-blind)

#650115

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5b170c;
/* rgb */ color: rgb(91, 23, 12);
/* oklch */ color: oklch(31.8% 0.101 31.9);

Tailwind

colors: {
  custom: {
    50: '#90594c',
    500: '#5b170c',
    950: '#000000',
  },
}

SCSS

$custom: #5b170c;
$custom-light: #90594c;
$custom-dark: #000000;

JSON

{
  "hex": "#5b170c",
  "rgb": {
    "r": 91,
    "g": 23,
    "b": 12
  },
  "hsl": {
    "h": 8.354,
    "s": 76.699,
    "l": 20.196
  },
  "oklch": {
    "l": 0.31757,
    "c": 0.10127,
    "h": 31.9
  },
  "luminance": 0.02863
}

Semantic roles & 50–950 ramp

primary

#5B170C

secondary

#2D8796

accent

#D9F335

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0E0401

muted

#7E7977

Preview Lab

Preview with #5B170C

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

Preview Lab → · Contrast checker → · Palette generator →