#90231A#90231A

#90231A is a dark, vivid red. Relative luminance 0.072; OKLCH L 43.3% C 0.146 H 29.2°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#90231A
RGB	rgb(144, 35, 26)
HSL	hsl(5, 69%, 33%)
HSV	hsv(5, 82%, 56%)
CMYK	cmyk(0%, 75.7%, 81.9%, 43.5%)
CIE-LAB	lab(32.28, 44.76, 33.04)
CIE-LCH	lch(32.28, 55.63, 36.43°)
OKLab	oklab(43.34% 0.1276 0.0714)
OKLCH	oklch(43.34% 0.146 29.2)
XYZ	xyz(12.2906, 7.2079, 1.7212)
Luminance	0.0721 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90231A #1A8790

analogous

#901A4C #90231A #905E1A

triadic

#90231A #1A9023 #231A90

tetradic

#90231A #4C901A #1A8790 #5E1A90

square

#90231A #4C901A #1A8790 #5E1A90

split-complementary

#90231A #1A905E #1A4C90

monochromatic

#280A07 #5C1611 #90231A #C43023 #DE5247

Accessibility & contrast

On white

8.60

#90231A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#90231A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90231A

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90231A	#FFFFFF	#000000	##FFFFFF
##90231A	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#443D18

Deuteranopia (green-blind)

#5F5515

Tritanopia (blue-blind)

#9F0022

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #90231a;
/* rgb */ color: rgb(144, 35, 26);
/* oklch */ color: oklch(43.3% 0.146 29.2);

Tailwind

colors: {
  custom: {
    50: '#b96758',
    500: '#90231a',
    950: '#000000',
  },
}

SCSS

$custom: #90231a;
$custom-light: #b96758;
$custom-dark: #000000;

JSON

{
  "hex": "#90231a",
  "rgb": {
    "r": 144,
    "g": 35,
    "b": 26
  },
  "hsl": {
    "h": 4.576,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.43337,
    "c": 0.14622,
    "h": 29.2
  },
  "luminance": 0.07206
}

Semantic roles & 50–950 ramp

primary

#90231A

secondary

#47B6BF

accent

#DFEC3C

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #90231A

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

Preview Lab → · Contrast checker → · Palette generator →