#90191B#90191B

#90191B is a dark, vivid red. Relative luminance 0.067; OKLCH L 42.5% C 0.154 H 26.2°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#90191B
RGB	rgb(144, 25, 27)
HSL	hsl(359, 70%, 33%)
HSV	hsv(359, 83%, 56%)
CMYK	cmyk(0%, 82.6%, 81.3%, 43.5%)
CIE-LAB	lab(31.13, 48.04, 31.30)
CIE-LCH	lch(31.13, 57.33, 33.09°)
OKLab	oklab(42.49% 0.1382 0.0679)
OKLCH	oklch(42.49% 0.154 26.2)
XYZ	xyz(12.0485, 6.7056, 1.6966)
Luminance	0.0670 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90191B #19908E

analogous

#901956 #90191B #905319

triadic

#90191B #1B9019 #191B90

tetradic

#90191B #569019 #19908E #531990

square

#90191B #569019 #19908E #531990

split-complementary

#90191B #199053 #195690

monochromatic

#280707 #5C1011 #90191B #C42225 #DF4547

Accessibility & contrast

On white

8.97

#90191B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#90191B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90191B

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90191B	#FFFFFF	#000000	##FFFFFF
##90191B	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3919

Deuteranopia (green-blind)

#5D5215

Tritanopia (blue-blind)

#9F001C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #90191b;
/* rgb */ color: rgb(144, 25, 27);
/* oklch */ color: oklch(42.5% 0.154 26.2);

Tailwind

colors: {
  custom: {
    50: '#b96358',
    500: '#90191b',
    950: '#000000',
  },
}

SCSS

$custom: #90191b;
$custom-light: #b96358;
$custom-dark: #000000;

JSON

{
  "hex": "#90191b",
  "rgb": {
    "r": 144,
    "g": 25,
    "b": 27
  },
  "hsl": {
    "h": 358.992,
    "s": 70.414,
    "l": 33.137
  },
  "oklch": {
    "l": 0.42486,
    "c": 0.15393,
    "h": 26.2
  },
  "luminance": 0.06704
}

Semantic roles & 50–950 ramp

primary

#90191B

secondary

#45C0BE

accent

#EDEA3B

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #90191B

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

Preview Lab → · Contrast checker → · Palette generator →