#90182B#90182B

#90182B is a dark, vivid red. Relative luminance 0.068; OKLCH L 42.6% C 0.153 H 19.1°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#90182B
RGB	rgb(144, 24, 43)
HSL	hsl(351, 71%, 33%)
HSV	hsv(351, 83%, 56%)
CMYK	cmyk(0%, 83.3%, 70.1%, 43.5%)
CIE-LAB	lab(31.25, 49.00, 21.44)
CIE-LCH	lch(31.25, 53.49, 23.63°)
OKLab	oklab(42.65% 0.1449 0.0502)
OKLCH	oklch(42.65% 0.153 19.1)
XYZ	xyz(12.2657, 6.7589, 2.9438)
Luminance	0.0676 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90182B #18907D

analogous

#901867 #90182B #904118

triadic

#90182B #2B9018 #182B90

tetradic

#90182B #679018 #18907D #411890

square

#90182B #679018 #18907D #411890

split-complementary

#90182B #189041 #186790

monochromatic

#27070C #5C0F1B #90182B #C4213B #E0435C

Accessibility & contrast

On white

8.93

#90182B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#90182B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90182B

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90182B	#FFFFFF	#000000	##FFFFFF
##90182B	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D392B

Deuteranopia (green-blind)

#5B5227

Tritanopia (blue-blind)

#9F0021

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #90182b;
/* rgb */ color: rgb(144, 24, 43);
/* oklch */ color: oklch(42.6% 0.153 19.1);

Tailwind

colors: {
  custom: {
    50: '#b86364',
    500: '#90182b',
    950: '#000000',
  },
}

SCSS

$custom: #90182b;
$custom-light: #b86364;
$custom-dark: #000000;

JSON

{
  "hex": "#90182b",
  "rgb": {
    "r": 144,
    "g": 24,
    "b": 43
  },
  "hsl": {
    "h": 350.5,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.42649,
    "c": 0.15337,
    "h": 19.1
  },
  "luminance": 0.06757
}

Semantic roles & 50–950 ramp

primary

#90182B

secondary

#43C0AD

accent

#EED23A

background

#FCF6F5

surface

#F8EBEA

border

#D1C6C6

text

#130605

muted

#827A79

Preview Lab

Preview with #90182B

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

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