#90403B#90403B

#90403B is a mid, moderate red. Relative luminance 0.099; OKLCH L 47.6% C 0.110 H 25.7°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#90403B
RGB	rgb(144, 64, 59)
HSL	hsl(4, 42%, 40%)
HSV	hsv(4, 59%, 56%)
CMYK	cmyk(0%, 55.6%, 59%, 43.5%)
CIE-LAB	lab(37.69, 33.44, 19.51)
CIE-LCH	lch(37.69, 38.71, 30.26°)
OKLab	oklab(47.56% 0.0988 0.0475)
OKLCH	oklch(47.56% 0.11 25.7)
XYZ	xyz(14.1256, 9.9135, 5.3065)
Luminance	0.0991 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90403B #3B8B90

analogous

#903B61 #90403B #906A3B

triadic

#90403B #3B9040 #403B90

tetradic

#90403B #61903B #3B8B90 #6A3B90

square

#90403B #61903B #3B8B90 #6A3B90

split-complementary

#90403B #3B906A #3B6190

monochromatic

#391917 #652D29 #90403B #B85751 #C9817C

Accessibility & contrast

On white

7.04

#90403B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#90403B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90403B

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90403B	#FFFFFF	#000000	##FFFFFF
##90403B	1.00	7.04	2.98	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534E3A

Deuteranopia (green-blind)

#675F39

Tritanopia (blue-blind)

#9D323F

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #90403b;
/* rgb */ color: rgb(144, 64, 59);
/* oklch */ color: oklch(47.6% 0.110 25.7);

Tailwind

colors: {
  custom: {
    50: '#b57771',
    500: '#90403b',
    950: '#000000',
  },
}

SCSS

$custom: #90403b;
$custom-light: #b57771;
$custom-dark: #000000;

JSON

{
  "hex": "#90403b",
  "rgb": {
    "r": 144,
    "g": 64,
    "b": 59
  },
  "hsl": {
    "h": 3.529,
    "s": 41.872,
    "l": 39.804
  },
  "oklch": {
    "l": 0.4756,
    "c": 0.10964,
    "h": 25.7
  },
  "luminance": 0.09912
}

Semantic roles & 50–950 ramp

primary

#90403B

secondary

#74AFB3

accent

#CAD256

background

#FBF7F6

surface

#F6EDEC

border

#D0C8C7

text

#120907

muted

#817B7A

Preview Lab

Preview with #90403B

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

Preview Lab → · Contrast checker → · Palette generator →