#90371D#90371D

#90371D is a mid, vivid red. Relative luminance 0.087; OKLCH L 45.8% C 0.127 H 36.7°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#90371D
RGB	rgb(144, 55, 29)
HSL	hsl(14, 66%, 34%)
HSV	hsv(14, 80%, 56%)
CMYK	cmyk(0%, 61.8%, 79.9%, 43.5%)
CIE-LAB	lab(35.50, 36.22, 34.64)
CIE-LCH	lch(35.50, 50.12, 43.72°)
OKLab	oklab(45.77% 0.1017 0.0758)
OKLCH	oklch(45.77% 0.127 36.7)
XYZ	xyz(13.0910, 8.7522, 2.1622)
Luminance	0.0875 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90371D #1D7690

analogous

#901D3D #90371D #90711D

triadic

#90371D #1D9037 #371D90

tetradic

#90371D #3D901D #1D7690 #711D90

square

#90371D #3D901D #1D7690 #711D90

split-complementary

#90371D #1D9071 #1D3D90

monochromatic

#2A1008 #5D2413 #90371D #C34A27 #DB6D4C

Accessibility & contrast

On white

7.64

#90371D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#90371D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90371D

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90371D	#FFFFFF	#000000	##FFFFFF
##90371D	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504719

Deuteranopia (green-blind)

#665B1A

Tritanopia (blue-blind)

#9F2132

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #90371d;
/* rgb */ color: rgb(144, 55, 29);
/* oklch */ color: oklch(45.8% 0.127 36.7);

Tailwind

colors: {
  custom: {
    50: '#b8715b',
    500: '#90371d',
    950: '#000000',
  },
}

SCSS

$custom: #90371d;
$custom-light: #b8715b;
$custom-dark: #000000;

JSON

{
  "hex": "#90371d",
  "rgb": {
    "r": 144,
    "g": 55,
    "b": 29
  },
  "hsl": {
    "h": 13.565,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.4577,
    "c": 0.12685,
    "h": 36.7
  },
  "luminance": 0.0875
}

Semantic roles & 50–950 ramp

primary

#90371D

secondary

#4BA4BD

accent

#C3E93E

background

#FCF7F5

surface

#F8EDE9

border

#D1C8C5

text

#130804

muted

#827B79

Preview Lab

Preview with #90371D

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

Preview Lab → · Contrast checker → · Palette generator →