#90171F#90171F

#90171F is a dark, vivid red. Relative luminance 0.066; OKLCH L 42.4% C 0.155 H 24.2°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#90171F
RGB	rgb(144, 23, 31)
HSL	hsl(356, 72%, 33%)
HSV	hsv(356, 84%, 56%)
CMYK	cmyk(0%, 84%, 78.5%, 43.5%)
CIE-LAB	lab(30.98, 48.73, 28.73)
CIE-LCH	lch(30.98, 56.57, 30.53°)
OKLab	oklab(42.39% 0.1412 0.0636)
OKLCH	oklch(42.39% 0.155 24.2)
XYZ	xyz(12.0568, 6.6430, 1.9435)
Luminance	0.0664 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90171F #179088

analogous

#90175B #90171F #904B17

triadic

#90171F #1F9017 #171F90

tetradic

#90171F #5B9017 #179088 #4B1790

square

#90171F #5B9017 #179088 #4B1790

split-complementary

#90171F #17904B #175B90

monochromatic

#260608 #5B0F14 #90171F #C51F2A #E1414B

Accessibility & contrast

On white

9.02

#90171F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#90171F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90171F

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90171F	#FFFFFF	#000000	##FFFFFF
##90171F	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E381E

Deuteranopia (green-blind)

#5C521A

Tritanopia (blue-blind)

#9F001C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #90171f;
/* rgb */ color: rgb(144, 23, 31);
/* oklch */ color: oklch(42.4% 0.155 24.2);

Tailwind

colors: {
  custom: {
    50: '#b9625b',
    500: '#90171f',
    950: '#000000',
  },
}

SCSS

$custom: #90171f;
$custom-light: #b9625b;
$custom-dark: #000000;

JSON

{
  "hex": "#90171f",
  "rgb": {
    "r": 144,
    "g": 23,
    "b": 31
  },
  "hsl": {
    "h": 356.033,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.42391,
    "c": 0.15488,
    "h": 24.2
  },
  "luminance": 0.06641
}

Semantic roles & 50–950 ramp

primary

#90171F

secondary

#42C1B9

accent

#EFE339

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130604

muted

#827A79

Preview Lab

Preview with #90171F

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

Preview Lab → · Contrast checker → · Palette generator →