#90172A#90172A

#90172A is a dark, vivid red. Relative luminance 0.067; OKLCH L 42.6% C 0.154 H 19.4°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#90172A
RGB	rgb(144, 23, 42)
HSL	hsl(351, 72%, 33%)
HSV	hsv(351, 84%, 56%)
CMYK	cmyk(0%, 84%, 70.8%, 43.5%)
CIE-LAB	lab(31.14, 49.22, 21.95)
CIE-LCH	lch(31.14, 53.89, 24.04°)
OKLab	oklab(42.56% 0.1454 0.0511)
OKLCH	oklch(42.56% 0.154 19.4)
XYZ	xyz(12.2273, 6.7112, 2.8416)
Luminance	0.0671 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#90172A #17907D

analogous

#901766 #90172A #904117

triadic

#90172A #2A9017 #172A90

tetradic

#90172A #669017 #17907D #411790

square

#90172A #669017 #17907D #411790

split-complementary

#90172A #179041 #176690

monochromatic

#26060B #5B0F1B #90172A #C51F39 #E1415A

Accessibility & contrast

On white

8.97

#90172A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#90172A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #90172A

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##90172A	#FFFFFF	#000000	##FFFFFF
##90172A	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D392A

Deuteranopia (green-blind)

#5B5226

Tritanopia (blue-blind)

#9F0020

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #90172a;
/* rgb */ color: rgb(144, 23, 42);
/* oklch */ color: oklch(42.6% 0.154 19.4);

Tailwind

colors: {
  custom: {
    50: '#b86363',
    500: '#90172a',
    950: '#000000',
  },
}

SCSS

$custom: #90172a;
$custom-light: #b86363;
$custom-dark: #000000;

JSON

{
  "hex": "#90172a",
  "rgb": {
    "r": 144,
    "g": 23,
    "b": 42
  },
  "hsl": {
    "h": 350.579,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.42561,
    "c": 0.15413,
    "h": 19.4
  },
  "luminance": 0.06709
}

Semantic roles & 50–950 ramp

primary

#90172A

secondary

#42C1AD

accent

#EFD339

background

#FCF6F5

surface

#F8EBEA

border

#D1C6C6

text

#130605

muted

#827A79

Preview Lab

Preview with #90172A

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

Preview Lab → · Contrast checker → · Palette generator →