#5A131B#5A131B

#5A131B is a dark, moderate red. Relative luminance 0.027; OKLCH L 31.3% C 0.102 H 19.4°. Best body text is #FFFFFF at 13.60:1 contrast (WCAG AA passes).

Color values

HEX	#5A131B
RGB	rgb(90, 19, 27)
HSL	hsl(353, 65%, 21%)
HSV	hsv(353, 79%, 35%)
CMYK	cmyk(0%, 78.9%, 70%, 64.7%)
CIE-LAB	lab(18.88, 32.48, 14.23)
CIE-LCH	lch(18.88, 35.47, 23.66°)
OKLab	oklab(31.34% 0.0963 0.0339)
OKLCH	oklch(31.34% 0.102 19.4)
XYZ	xyz(4.6476, 2.7192, 1.3168)
Luminance	0.0272 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A131B #135A52

analogous

#5A133F #5A131B #5A2F13

triadic

#5A131B #1B5A13 #131B5A

tetradic

#5A131B #3F5A13 #135A52 #2F135A

square

#5A131B #3F5A13 #135A52 #2F135A

split-complementary

#5A131B #135A2F #133F5A

monochromatic

#190508 #27080C #5A131B #8D1E2A #BF2839

Accessibility & contrast

On white

13.60

#5A131B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#5A131B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A131B

13.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A131B	#FFFFFF	#000000	##FFFFFF
##5A131B	1.00	13.60	1.54	13.60
#FFFFFF	13.60	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27241B

Deuteranopia (green-blind)

#393319

Tritanopia (blue-blind)

#630017

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #5a131b;
/* rgb */ color: rgb(90, 19, 27);
/* oklch */ color: oklch(31.3% 0.102 19.4);

Tailwind

colors: {
  custom: {
    50: '#8e5757',
    500: '#5a131b',
    950: '#000000',
  },
}

SCSS

$custom: #5a131b;
$custom-light: #8e5757;
$custom-dark: #000000;

JSON

{
  "hex": "#5a131b",
  "rgb": {
    "r": 90,
    "g": 19,
    "b": 27
  },
  "hsl": {
    "h": 353.239,
    "s": 65.138,
    "l": 21.373
  },
  "oklch": {
    "l": 0.31335,
    "c": 0.1021,
    "h": 19.4
  },
  "luminance": 0.02719
}

Semantic roles & 50–950 ramp

primary

#5A131B

secondary

#379288

accent

#E8D540

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5A131B

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

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