#901F1F#901F1F

#901F1F is a dark, vivid red. Relative luminance 0.070; OKLCH L 43.0% C 0.149 H 26.1°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#901F1F
RGB	rgb(144, 31, 31)
HSL	hsl(0, 65%, 34%)
HSV	hsv(0, 78%, 56%)
CMYK	cmyk(0%, 78.5%, 78.5%, 43.5%)
CIE-LAB	lab(31.83, 46.33, 29.66)
CIE-LCH	lch(31.83, 55.01, 32.62°)
OKLab	oklab(43.02% 0.1337 0.0656)
OKLCH	oklch(43.02% 0.149 26.1)
XYZ	xyz(12.2404, 7.0101, 2.0046)
Luminance	0.0701 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901F1F #1F9090

analogous

#901F58 #901F1F #90581F

triadic

#901F1F #1F901F #1F1F90

tetradic

#901F1F #58901F #1F9090 #581F90

square

#901F1F #58901F #1F9090 #581F90

split-complementary

#901F1F #1F9058 #1F5890

monochromatic

#2B0909 #5E1414 #901F1F #C22A2A #D95050

Accessibility & contrast

On white

8.74

#901F1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#901F1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901F1F

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901F1F	#FFFFFF	#000000	##FFFFFF
##901F1F	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423B1E

Deuteranopia (green-blind)

#5E541A

Tritanopia (blue-blind)

#9F0021

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #901f1f;
/* rgb */ color: rgb(144, 31, 31);
/* oklch */ color: oklch(43.0% 0.149 26.1);

Tailwind

colors: {
  custom: {
    50: '#b9655b',
    500: '#901f1f',
    950: '#000000',
  },
}

SCSS

$custom: #901f1f;
$custom-light: #b9655b;
$custom-dark: #000000;

JSON

{
  "hex": "#901f1f",
  "rgb": {
    "r": 144,
    "g": 31,
    "b": 31
  },
  "hsl": {
    "h": 0,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.43022,
    "c": 0.14888,
    "h": 26.1
  },
  "luminance": 0.07008
}

Semantic roles & 50–950 ramp

primary

#901F1F

secondary

#4EBCBC

accent

#E8E840

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130604

muted

#827A79

Preview Lab

Preview with #901F1F

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

Preview Lab → · Contrast checker → · Palette generator →