#901F1B#901F1B

#901F1B is a dark, vivid red. Relative luminance 0.070; OKLCH L 43.0% C 0.149 H 27.7°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#901F1B
RGB	rgb(144, 31, 27)
HSL	hsl(2, 68%, 34%)
HSV	hsv(2, 81%, 56%)
CMYK	cmyk(0%, 78.5%, 81.3%, 43.5%)
CIE-LAB	lab(31.78, 46.19, 31.97)
CIE-LCH	lch(31.78, 56.17, 34.69°)
OKLab	oklab(42.97% 0.1323 0.0694)
OKLCH	oklch(42.97% 0.149 27.7)
XYZ	xyz(12.1909, 6.9903, 1.7441)
Luminance	0.0699 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901F1B #1B8C90

analogous

#901B51 #901F1B #90591B

triadic

#901F1B #1B901F #1F1B90

tetradic

#901F1B #51901B #1B8C90 #591B90

square

#901F1B #51901B #1B8C90 #591B90

split-complementary

#901F1B #1B9059 #1B5190

monochromatic

#290908 #5C1411 #901F1B #C42A25 #DD4E49

Accessibility & contrast

On white

8.76

#901F1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#901F1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901F1B

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901F1B	#FFFFFF	#000000	##FFFFFF
##901F1B	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423B19

Deuteranopia (green-blind)

#5E5416

Tritanopia (blue-blind)

#9F0020

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #901f1b;
/* rgb */ color: rgb(144, 31, 27);
/* oklch */ color: oklch(43.0% 0.149 27.7);

Tailwind

colors: {
  custom: {
    50: '#b96558',
    500: '#901f1b',
    950: '#000000',
  },
}

SCSS

$custom: #901f1b;
$custom-light: #b96558;
$custom-dark: #000000;

JSON

{
  "hex": "#901f1b",
  "rgb": {
    "r": 144,
    "g": 31,
    "b": 27
  },
  "hsl": {
    "h": 2.051,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42974,
    "c": 0.1494,
    "h": 27.7
  },
  "luminance": 0.06988
}

Semantic roles & 50–950 ramp

primary

#901F1B

secondary

#48BBBF

accent

#E5EB3D

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #901F1B

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

Preview Lab → · Contrast checker → · Palette generator →