#90371F#90371F

#90371F is a mid, vivid red. Relative luminance 0.088; OKLCH L 45.8% C 0.126 H 35.9°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#90371F
RGB	rgb(144, 55, 31)
HSL	hsl(13, 65%, 34%)
HSV	hsv(13, 78%, 56%)
CMYK	cmyk(0%, 61.8%, 78.5%, 43.5%)
CIE-LAB	lab(35.52, 36.30, 33.57)
CIE-LCH	lch(35.52, 49.45, 42.76°)
OKLab	oklab(45.79% 0.1023 0.0741)
OKLCH	oklch(45.79% 0.126 35.9)
XYZ	xyz(13.1165, 8.7624, 2.2967)
Luminance	0.0876 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90371F #1F7890

analogous

#901F40 #90371F #90701F

triadic

#90371F #1F9037 #371F90

tetradic

#90371F #40901F #1F7890 #701F90

square

#90371F #40901F #1F7890 #701F90

split-complementary

#90371F #1F9070 #1F4090

monochromatic

#2B1109 #5E2414 #90371F #C24A2A #D96D50

Accessibility & contrast

On white

7.63

#90371F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#90371F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90371F

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90371F	#FFFFFF	#000000	##FFFFFF
##90371F	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50471C

Deuteranopia (green-blind)

#665B1C

Tritanopia (blue-blind)

#9F2232

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #90371f;
/* rgb */ color: rgb(144, 55, 31);
/* oklch */ color: oklch(45.8% 0.126 35.9);

Tailwind

colors: {
  custom: {
    50: '#b8715c',
    500: '#90371f',
    950: '#000000',
  },
}

SCSS

$custom: #90371f;
$custom-light: #b8715c;
$custom-dark: #000000;

JSON

{
  "hex": "#90371f",
  "rgb": {
    "r": 144,
    "g": 55,
    "b": 31
  },
  "hsl": {
    "h": 12.743,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.45792,
    "c": 0.12632,
    "h": 35.9
  },
  "luminance": 0.08761
}

Semantic roles & 50–950 ramp

primary

#90371F

secondary

#4EA5BC

accent

#C4E840

background

#FCF7F5

surface

#F8EDE9

border

#D1C8C5

text

#130804

muted

#827B79

Preview Lab

Preview with #90371F

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

Preview Lab → · Contrast checker → · Palette generator →