#5B131C#5B131C

#5B131C is a dark, moderate red. Relative luminance 0.028; OKLCH L 31.6% C 0.103 H 18.8°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#5B131C
RGB	rgb(91, 19, 28)
HSL	hsl(353, 65%, 22%)
HSV	hsv(353, 79%, 36%)
CMYK	cmyk(0%, 79.1%, 69.2%, 64.3%)
CIE-LAB	lab(19.12, 32.90, 13.88)
CIE-LCH	lch(19.12, 35.71, 22.87°)
OKLab	oklab(31.55% 0.0977 0.0332)
OKLCH	oklch(31.55% 0.103 18.8)
XYZ	xyz(4.7574, 2.7744, 1.3834)
Luminance	0.0277 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B131C #135B52

analogous

#5B1340 #5B131C #5B2E13

triadic

#5B131C #1C5B13 #131C5B

tetradic

#5B131C #405B13 #135B52 #2E135B

square

#5B131C #405B13 #135B52 #2E135B

split-complementary

#5B131C #135B2E #13405B

monochromatic

#190508 #28080C #5B131C #8E1E2C #C0283B

Accessibility & contrast

On white

13.51

#5B131C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#5B131C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5B131C

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B131C	#FFFFFF	#000000	##FFFFFF
##5B131C	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27251C

Deuteranopia (green-blind)

#39341A

Tritanopia (blue-blind)

#640017

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #5b131c;
/* rgb */ color: rgb(91, 19, 28);
/* oklch */ color: oklch(31.6% 0.103 18.8);

Tailwind

colors: {
  custom: {
    50: '#8f5757',
    500: '#5b131c',
    950: '#000000',
  },
}

SCSS

$custom: #5b131c;
$custom-light: #8f5757;
$custom-dark: #000000;

JSON

{
  "hex": "#5b131c",
  "rgb": {
    "r": 91,
    "g": 19,
    "b": 28
  },
  "hsl": {
    "h": 352.5,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.31554,
    "c": 0.10319,
    "h": 18.8
  },
  "luminance": 0.02774
}

Semantic roles & 50–950 ramp

primary

#5B131C

secondary

#379388

accent

#E8D33F

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5B131C

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

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