#90301B#90301B

#90301B is a dark, vivid red. Relative luminance 0.081; OKLCH L 44.8% C 0.134 H 33.9°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#90301B
RGB	rgb(144, 48, 27)
HSL	hsl(11, 68%, 34%)
HSV	hsv(11, 81%, 56%)
CMYK	cmyk(0%, 66.7%, 81.3%, 43.5%)
CIE-LAB	lab(34.24, 39.45, 34.45)
CIE-LCH	lch(34.24, 52.37, 41.13°)
OKLab	oklab(44.81% 0.1113 0.0748)
OKLCH	oklch(44.81% 0.134 33.9)
XYZ	xyz(12.7578, 8.1242, 1.9330)
Luminance	0.0812 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90301B #1B7B90

analogous

#901B40 #90301B #906A1B

triadic

#90301B #1B9030 #301B90

tetradic

#90301B #40901B #1B7B90 #6A1B90

square

#90301B #40901B #1B7B90 #6A1B90

split-complementary

#90301B #1B906A #1B4090

monochromatic

#290E08 #5C1F11 #90301B #C44125 #DD6349

Accessibility & contrast

On white

8.00

#90301B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#90301B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90301B

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90301B	#FFFFFF	#000000	##FFFFFF
##90301B	1.00	8.00	2.62	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4318

Deuteranopia (green-blind)

#635817

Tritanopia (blue-blind)

#9F152C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #90301b;
/* rgb */ color: rgb(144, 48, 27);
/* oklch */ color: oklch(44.8% 0.134 33.9);

Tailwind

colors: {
  custom: {
    50: '#b86d59',
    500: '#90301b',
    950: '#000000',
  },
}

SCSS

$custom: #90301b;
$custom-light: #b86d59;
$custom-dark: #000000;

JSON

{
  "hex": "#90301b",
  "rgb": {
    "r": 144,
    "g": 48,
    "b": 27
  },
  "hsl": {
    "h": 10.769,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.44812,
    "c": 0.13408,
    "h": 33.9
  },
  "luminance": 0.08122
}

Semantic roles & 50–950 ramp

primary

#90301B

secondary

#48A9BF

accent

#CCEB3D

background

#FCF6F5

surface

#F8ECE9

border

#D1C7C5

text

#130703

muted

#827A78

Preview Lab

Preview with #90301B

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

Preview Lab → · Contrast checker → · Palette generator →