#5B131F#5B131F

#5B131F is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.6% C 0.103 H 16.2°. Best body text is #FFFFFF at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#5B131F
RGB	rgb(91, 19, 31)
HSL	hsl(350, 65%, 22%)
HSV	hsv(350, 79%, 36%)
CMYK	cmyk(0%, 79.1%, 65.9%, 64.3%)
CIE-LAB	lab(19.18, 33.11, 11.85)
CIE-LCH	lch(19.18, 35.17, 19.70°)
OKLab	oklab(31.62% 0.0991 0.0289)
OKLCH	oklch(31.62% 0.103 16.2)
XYZ	xyz(4.7951, 2.7895, 1.5820)
Luminance	0.0279 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B131F #135B4F

analogous

#5B1343 #5B131F #5B2B13

triadic

#5B131F #1F5B13 #131F5B

tetradic

#5B131F #435B13 #135B4F #2B135B

square

#5B131F #435B13 #135B4F #2B135B

split-complementary

#5B131F #135B2B #13435B

monochromatic

#190509 #28080E #5B131F #8E1E30 #C02841

Accessibility & contrast

On white

13.48

#5B131F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#5B131F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B131F

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B131F	#FFFFFF	#000000	##FFFFFF
##5B131F	1.00	13.48	1.56	13.48
#FFFFFF	13.48	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27251F

Deuteranopia (green-blind)

#39341D

Tritanopia (blue-blind)

#640018

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #5b131f;
/* rgb */ color: rgb(91, 19, 31);
/* oklch */ color: oklch(31.6% 0.103 16.2);

Tailwind

colors: {
  custom: {
    50: '#8f575a',
    500: '#5b131f',
    950: '#000000',
  },
}

SCSS

$custom: #5b131f;
$custom-light: #8f575a;
$custom-dark: #000000;

JSON

{
  "hex": "#5b131f",
  "rgb": {
    "r": 91,
    "g": 19,
    "b": 31
  },
  "hsl": {
    "h": 350,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31622,
    "c": 0.10318,
    "h": 16.2
  },
  "luminance": 0.02789
}

Semantic roles & 50–950 ramp

primary

#5B131F

secondary

#379384

accent

#E8CC3F

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5B131F

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

Preview Lab → · Contrast checker → · Palette generator →