#5B171D#5B171D

#5B171D is a dark, moderate red. Relative luminance 0.029; OKLCH L 32.0% C 0.099 H 19.9°. Best body text is #FFFFFF at 13.25:1 contrast (WCAG AA passes).

Color values

HEX	#5B171D
RGB	rgb(91, 23, 29)
HSL	hsl(355, 60%, 22%)
HSV	hsv(355, 75%, 36%)
CMYK	cmyk(0%, 74.7%, 68.1%, 64.3%)
CIE-LAB	lab(19.75, 31.29, 13.99)
CIE-LCH	lch(19.75, 34.27, 24.09°)
OKLab	oklab(32.03% 0.0928 0.0336)
OKLCH	oklch(32.03% 0.099 19.9)
XYZ	xyz(4.8430, 2.9263, 1.4720)
Luminance	0.0293 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B171D #175B55

analogous

#5B173F #5B171D #5B3317

triadic

#5B171D #1D5B17 #171D5B

tetradic

#5B171D #3F5B17 #175B55 #33175B

square

#5B171D #3F5B17 #175B55 #33175B

split-complementary

#5B171D #175B33 #173F5B

monochromatic

#180608 #2A0B0D #5B171D #8C232D #BD303C

Accessibility & contrast

On white

13.25

#5B171D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#5B171D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B171D

13.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B171D	#FFFFFF	#000000	##FFFFFF
##5B171D	1.00	13.25	1.59	13.25
#FFFFFF	13.25	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29271D

Deuteranopia (green-blind)

#3A351B

Tritanopia (blue-blind)

#64051A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #5b171d;
/* rgb */ color: rgb(91, 23, 29);
/* oklch */ color: oklch(32.0% 0.099 19.9);

Tailwind

colors: {
  custom: {
    50: '#8f5958',
    500: '#5b171d',
    950: '#000000',
  },
}

SCSS

$custom: #5b171d;
$custom-light: #8f5958;
$custom-dark: #000000;

JSON

{
  "hex": "#5b171d",
  "rgb": {
    "r": 91,
    "g": 23,
    "b": 29
  },
  "hsl": {
    "h": 354.706,
    "s": 59.649,
    "l": 22.353
  },
  "oklch": {
    "l": 0.3203,
    "c": 0.09867,
    "h": 19.9
  },
  "luminance": 0.02926
}

Semantic roles & 50–950 ramp

primary

#5B171D

secondary

#3C928A

accent

#E3D545

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5B171D

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

Preview Lab → · Contrast checker → · Palette generator →