#901720#901720

#901720 is a dark, vivid red. Relative luminance 0.066; OKLCH L 42.4% C 0.155 H 23.8°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#901720
RGB	rgb(144, 23, 32)
HSL	hsl(356, 72%, 33%)
HSV	hsv(356, 84%, 56%)
CMYK	cmyk(0%, 84%, 77.8%, 43.5%)
CIE-LAB	lab(30.99, 48.77, 28.13)
CIE-LCH	lch(30.99, 56.30, 29.98°)
OKLab	oklab(42.41% 0.1416 0.0625)
OKLCH	oklch(42.41% 0.155 23.8)
XYZ	xyz(12.0702, 6.6483, 2.0139)
Luminance	0.0665 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901720 #179087

analogous

#90175D #901720 #904A17

triadic

#901720 #209017 #172090

tetradic

#901720 #5D9017 #179087 #4A1790

square

#901720 #5D9017 #179087 #4A1790

split-complementary

#901720 #17904A #175D90

monochromatic

#260609 #5B0F14 #901720 #C51F2C #E1414D

Accessibility & contrast

On white

9.02

#901720 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#901720 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901720

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901720	#FFFFFF	#000000	##FFFFFF
##901720	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)

#3E381F

Deuteranopia (green-blind)

#5C521B

Tritanopia (blue-blind)

#9F001C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #901720;
/* rgb */ color: rgb(144, 23, 32);
/* oklch */ color: oklch(42.4% 0.155 23.8);

Tailwind

colors: {
  custom: {
    50: '#b9625b',
    500: '#901720',
    950: '#000000',
  },
}

SCSS

$custom: #901720;
$custom-light: #b9625b;
$custom-dark: #000000;

JSON

{
  "hex": "#901720",
  "rgb": {
    "r": 144,
    "g": 23,
    "b": 32
  },
  "hsl": {
    "h": 355.537,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.42405,
    "c": 0.15479,
    "h": 23.8
  },
  "luminance": 0.06646
}

Semantic roles & 50–950 ramp

primary

#901720

secondary

#42C1B8

accent

#EFE239

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130604

muted

#827A79

Preview Lab

Preview with #901720

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

Preview Lab → · Contrast checker → · Palette generator →