#90172B#90172B

#90172B is a dark, vivid red. Relative luminance 0.067; OKLCH L 42.6% C 0.154 H 18.9°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#90172B
RGB	rgb(144, 23, 43)
HSL	hsl(350, 72%, 33%)
HSV	hsv(350, 84%, 56%)
CMYK	cmyk(0%, 84%, 70.1%, 43.5%)
CIE-LAB	lab(31.16, 49.27, 21.32)
CIE-LCH	lch(31.16, 53.69, 23.40°)
OKLab	oklab(42.58% 0.1458 0.0499)
OKLCH	oklch(42.58% 0.154 18.9)
XYZ	xyz(12.2454, 6.7184, 2.9370)
Luminance	0.0672 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90172B #17907C

analogous

#901767 #90172B #904017

triadic

#90172B #2B9017 #172B90

tetradic

#90172B #679017 #17907C #401790

square

#90172B #679017 #17907C #401790

split-complementary

#90172B #179040 #176790

monochromatic

#26060B #5B0F1B #90172B #C51F3B #E1415B

Accessibility & contrast

On white

8.96

#90172B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#90172B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90172B

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90172B	#FFFFFF	#000000	##FFFFFF
##90172B	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D392B

Deuteranopia (green-blind)

#5B5227

Tritanopia (blue-blind)

#9F0020

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #90172b;
/* rgb */ color: rgb(144, 23, 43);
/* oklch */ color: oklch(42.6% 0.154 18.9);

Tailwind

colors: {
  custom: {
    50: '#b86364',
    500: '#90172b',
    950: '#000000',
  },
}

SCSS

$custom: #90172b;
$custom-light: #b86364;
$custom-dark: #000000;

JSON

{
  "hex": "#90172b",
  "rgb": {
    "r": 144,
    "g": 23,
    "b": 43
  },
  "hsl": {
    "h": 350.083,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.42579,
    "c": 0.1541,
    "h": 18.9
  },
  "luminance": 0.06717
}

Semantic roles & 50–950 ramp

primary

#90172B

secondary

#42C1AC

accent

#EFD139

background

#FCF6F5

surface

#F8EBEA

border

#D1C6C6

text

#130605

muted

#827A79

Preview Lab

Preview with #90172B

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

Preview Lab → · Contrast checker → · Palette generator →