#901A1B#901A1B

#901A1B is a dark, vivid red. Relative luminance 0.067; OKLCH L 42.6% C 0.153 H 26.4°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#901A1B
RGB	rgb(144, 26, 27)
HSL	hsl(359, 69%, 33%)
HSV	hsv(359, 82%, 56%)
CMYK	cmyk(0%, 81.9%, 81.3%, 43.5%)
CIE-LAB	lab(31.23, 47.75, 31.40)
CIE-LCH	lch(31.23, 57.15, 33.33°)
OKLab	oklab(42.56% 0.1372 0.0681)
OKLCH	oklch(42.56% 0.153 26.4)
XYZ	xyz(12.0703, 6.7492, 1.7039)
Luminance	0.0675 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901A1B #1A908F

analogous

#901A56 #901A1B #90541A

triadic

#901A1B #1B901A #1A1B90

tetradic

#901A1B #56901A #1A908F #541A90

square

#901A1B #56901A #1A908F #541A90

split-complementary

#901A1B #1A9054 #1A5690

monochromatic

#280708 #5C1111 #901A1B #C42325 #DE4748

Accessibility & contrast

On white

8.94

#901A1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#901A1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901A1B

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901A1B	#FFFFFF	#000000	##FFFFFF
##901A1B	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403919

Deuteranopia (green-blind)

#5D5316

Tritanopia (blue-blind)

#9F001C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #901a1b;
/* rgb */ color: rgb(144, 26, 27);
/* oklch */ color: oklch(42.6% 0.153 26.4);

Tailwind

colors: {
  custom: {
    50: '#b96358',
    500: '#901a1b',
    950: '#000000',
  },
}

SCSS

$custom: #901a1b;
$custom-light: #b96358;
$custom-dark: #000000;

JSON

{
  "hex": "#901a1b",
  "rgb": {
    "r": 144,
    "g": 26,
    "b": 27
  },
  "hsl": {
    "h": 359.492,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.42561,
    "c": 0.15322,
    "h": 26.4
  },
  "luminance": 0.06747
}

Semantic roles & 50–950 ramp

primary

#901A1B

secondary

#47BFBE

accent

#ECEB3C

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #901A1B

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

Preview Lab → · Contrast checker → · Palette generator →