#90241B#90241B

#90241B is a dark, vivid red. Relative luminance 0.073; OKLCH L 43.4% C 0.145 H 29.2°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#90241B
RGB	rgb(144, 36, 27)
HSL	hsl(5, 68%, 34%)
HSV	hsv(5, 81%, 56%)
CMYK	cmyk(0%, 75%, 81.3%, 43.5%)
CIE-LAB	lab(32.42, 44.42, 32.62)
CIE-LCH	lch(32.42, 55.11, 36.29°)
OKLab	oklab(43.45% 0.1268 0.0708)
OKLCH	oklch(43.45% 0.145 29.2)
XYZ	xyz(12.3318, 7.2721, 1.7910)
Luminance	0.0727 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90241B #1B8790

analogous

#901B4C #90241B #905E1B

triadic

#90241B #1B9024 #241B90

tetradic

#90241B #4C901B #1B8790 #5E1B90

square

#90241B #4C901B #1B8790 #5E1B90

split-complementary

#90241B #1B905E #1B4C90

monochromatic

#290A08 #5C1711 #90241B #C43125 #DD5449

Accessibility & contrast

On white

8.56

#90241B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#90241B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90241B

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90241B	#FFFFFF	#000000	##FFFFFF
##90241B	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453D19

Deuteranopia (green-blind)

#5F5516

Tritanopia (blue-blind)

#9F0023

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #90241b;
/* rgb */ color: rgb(144, 36, 27);
/* oklch */ color: oklch(43.4% 0.145 29.2);

Tailwind

colors: {
  custom: {
    50: '#b96758',
    500: '#90241b',
    950: '#000000',
  },
}

SCSS

$custom: #90241b;
$custom-light: #b96758;
$custom-dark: #000000;

JSON

{
  "hex": "#90241b",
  "rgb": {
    "r": 144,
    "g": 36,
    "b": 27
  },
  "hsl": {
    "h": 4.615,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.43447,
    "c": 0.14519,
    "h": 29.2
  },
  "luminance": 0.0727
}

Semantic roles & 50–950 ramp

primary

#90241B

secondary

#48B5BF

accent

#DEEB3D

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #90241B

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

Preview Lab → · Contrast checker → · Palette generator →