#90131B#90131B

#90131B is a dark, vivid red. Relative luminance 0.065; OKLCH L 42.1% C 0.158 H 25.0°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#90131B
RGB	rgb(144, 19, 27)
HSL	hsl(356, 77%, 32%)
HSV	hsv(356, 87%, 56%)
CMYK	cmyk(0%, 86.8%, 81.3%, 43.5%)
CIE-LAB	lab(30.58, 49.58, 30.74)
CIE-LCH	lch(30.58, 58.34, 31.80°)
OKLab	oklab(42.08% 0.143 0.0667)
OKLCH	oklch(42.08% 0.158 25)
XYZ	xyz(11.9338, 6.4761, 1.6584)
Luminance	0.0647 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90131B #139088

analogous

#90135A #90131B #904A13

triadic

#90131B #1B9013 #131B90

tetradic

#90131B #5A9013 #139088 #4A1390

square

#90131B #5A9013 #139088 #4A1390

split-complementary

#90131B #13904A #135A90

monochromatic

#240507 #5A0C11 #90131B #C61A25 #E53944

Accessibility & contrast

On white

9.15

#90131B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#90131B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90131B

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90131B	#FFFFFF	#000000	##FFFFFF
##90131B	1.00	9.15	2.29	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D371A

Deuteranopia (green-blind)

#5B5115

Tritanopia (blue-blind)

#9F0018

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #90131b;
/* rgb */ color: rgb(144, 19, 27);
/* oklch */ color: oklch(42.1% 0.158 25.0);

Tailwind

colors: {
  custom: {
    50: '#ba6158',
    500: '#90131b',
    950: '#000000',
  },
}

SCSS

$custom: #90131b;
$custom-light: #ba6158;
$custom-dark: #000000;

JSON

{
  "hex": "#90131b",
  "rgb": {
    "r": 144,
    "g": 19,
    "b": 27
  },
  "hsl": {
    "h": 356.16,
    "s": 76.687,
    "l": 31.961
  },
  "oklch": {
    "l": 0.42083,
    "c": 0.1578,
    "h": 25
  },
  "luminance": 0.06474
}

Semantic roles & 50–950 ramp

primary

#90131B

secondary

#3BC4BB

accent

#F3E735

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #90131B

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

Preview Lab → · Contrast checker → · Palette generator →