#5B171F#5B171F

#5B171F is a dark, moderate red. Relative luminance 0.029; OKLCH L 32.1% C 0.099 H 18.1°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#5B171F
RGB	rgb(91, 23, 31)
HSL	hsl(353, 60%, 22%)
HSV	hsv(353, 75%, 36%)
CMYK	cmyk(0%, 74.7%, 65.9%, 64.3%)
CIE-LAB	lab(19.79, 31.43, 12.65)
CIE-LCH	lch(19.79, 33.88, 21.92°)
OKLab	oklab(32.07% 0.0937 0.0307)
OKLCH	oklch(32.07% 0.099 18.1)
XYZ	xyz(4.8686, 2.9366, 1.6065)
Luminance	0.0294 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B171F #175B53

analogous

#5B1741 #5B171F #5B3117

triadic

#5B171F #1F5B17 #171F5B

tetradic

#5B171F #415B17 #175B53 #31175B

square

#5B171F #415B17 #175B53 #31175B

split-complementary

#5B171F #175B31 #17415B

monochromatic

#180608 #2A0B0E #5B171F #8C2330 #BD3040

Accessibility & contrast

On white

13.23

#5B171F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#5B171F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B171F

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B171F	#FFFFFF	#000000	##FFFFFF
##5B171F	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29271F

Deuteranopia (green-blind)

#3A351D

Tritanopia (blue-blind)

#64061A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #5b171f;
/* rgb */ color: rgb(91, 23, 31);
/* oklch */ color: oklch(32.1% 0.099 18.1);

Tailwind

colors: {
  custom: {
    50: '#8f595a',
    500: '#5b171f',
    950: '#000000',
  },
}

SCSS

$custom: #5b171f;
$custom-light: #8f595a;
$custom-dark: #000000;

JSON

{
  "hex": "#5b171f",
  "rgb": {
    "r": 91,
    "g": 23,
    "b": 31
  },
  "hsl": {
    "h": 352.941,
    "s": 59.649,
    "l": 22.353
  },
  "oklch": {
    "l": 0.32074,
    "c": 0.09858,
    "h": 18.1
  },
  "luminance": 0.02936
}

Semantic roles & 50–950 ramp

primary

#5B171F

secondary

#3C9288

accent

#E3D045

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0403

muted

#7E7978

Preview Lab

Preview with #5B171F

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

Preview Lab → · Contrast checker → · Palette generator →