#901F23#901F23

#901F23 is a dark, vivid red. Relative luminance 0.070; OKLCH L 43.1% C 0.148 H 24.5°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#901F23
RGB	rgb(144, 31, 35)
HSL	hsl(358, 65%, 34%)
HSV	hsv(358, 78%, 56%)
CMYK	cmyk(0%, 78.5%, 75.7%, 43.5%)
CIE-LAB	lab(31.88, 46.50, 27.27)
CIE-LCH	lch(31.88, 53.90, 30.39°)
OKLab	oklab(43.08% 0.1351 0.0614)
OKLCH	oklch(43.08% 0.148 24.5)
XYZ	xyz(12.2964, 7.0325, 2.2997)
Luminance	0.0703 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901F23 #1F908C

analogous

#901F5C #901F23 #90541F

triadic

#901F23 #23901F #1F2390

tetradic

#901F23 #5C901F #1F908C #541F90

square

#901F23 #5C901F #1F908C #541F90

split-complementary

#901F23 #1F9054 #1F5C90

monochromatic

#2B090B #5E1417 #901F23 #C22A2F #D95055

Accessibility & contrast

On white

8.73

#901F23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#901F23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901F23

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901F23	#FFFFFF	#000000	##FFFFFF
##901F23	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413B22

Deuteranopia (green-blind)

#5D541F

Tritanopia (blue-blind)

#9F0022

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #901f23;
/* rgb */ color: rgb(144, 31, 35);
/* oklch */ color: oklch(43.1% 0.148 24.5);

Tailwind

colors: {
  custom: {
    50: '#b9655e',
    500: '#901f23',
    950: '#000000',
  },
}

SCSS

$custom: #901f23;
$custom-light: #b9655e;
$custom-dark: #000000;

JSON

{
  "hex": "#901f23",
  "rgb": {
    "r": 144,
    "g": 31,
    "b": 35
  },
  "hsl": {
    "h": 357.876,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.43076,
    "c": 0.1484,
    "h": 24.5
  },
  "luminance": 0.07031
}

Semantic roles & 50–950 ramp

primary

#901F23

secondary

#4EBCB8

accent

#E8E240

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130604

muted

#827A79

Preview Lab

Preview with #901F23

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

Preview Lab → · Contrast checker → · Palette generator →