#90311E#90311E

#90311E is a dark, vivid red. Relative luminance 0.082; OKLCH L 45.0% C 0.132 H 33.2°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#90311E
RGB	rgb(144, 49, 30)
HSL	hsl(10, 66%, 34%)
HSV	hsv(10, 79%, 56%)
CMYK	cmyk(0%, 66%, 79.2%, 43.5%)
CIE-LAB	lab(34.44, 39.11, 33.00)
CIE-LCH	lch(34.44, 51.17, 40.16°)
OKLab	oklab(44.97% 0.1108 0.0726)
OKLCH	oklch(44.97% 0.132 33.2)
XYZ	xyz(12.8357, 8.2215, 2.1391)
Luminance	0.0822 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90311E #1E7D90

analogous

#901E44 #90311E #906A1E

triadic

#90311E #1E9031 #311E90

tetradic

#90311E #44901E #1E7D90 #6A1E90

square

#90311E #44901E #1E7D90 #6A1E90

split-complementary

#90311E #1E906A #1E4490

monochromatic

#2B0F09 #5D2013 #90311E #C34229 #DA664E

Accessibility & contrast

On white

7.94

#90311E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#90311E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90311E

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90311E	#FFFFFF	#000000	##FFFFFF
##90311E	1.00	7.94	2.64	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C441B

Deuteranopia (green-blind)

#63591A

Tritanopia (blue-blind)

#9F172D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #90311e;
/* rgb */ color: rgb(144, 49, 30);
/* oklch */ color: oklch(45.0% 0.132 33.2);

Tailwind

colors: {
  custom: {
    50: '#b86e5b',
    500: '#90311e',
    950: '#000000',
  },
}

SCSS

$custom: #90311e;
$custom-light: #b86e5b;
$custom-dark: #000000;

JSON

{
  "hex": "#90311e",
  "rgb": {
    "r": 144,
    "g": 49,
    "b": 30
  },
  "hsl": {
    "h": 10,
    "s": 65.517,
    "l": 34.118
  },
  "oklch": {
    "l": 0.44972,
    "c": 0.13246,
    "h": 33.2
  },
  "luminance": 0.0822
}

Semantic roles & 50–950 ramp

primary

#90311E

secondary

#4DAABD

accent

#CCE83F

background

#FCF6F5

surface

#F8ECE9

border

#D1C7C5

text

#130704

muted

#827A79

Preview Lab

Preview with #90311E

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

Preview Lab → · Contrast checker → · Palette generator →