#901A2B#901A2B

#901A2B is a dark, vivid red. Relative luminance 0.068; OKLCH L 42.8% C 0.152 H 19.5°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#901A2B
RGB	rgb(144, 26, 43)
HSL	hsl(351, 69%, 33%)
HSV	hsv(351, 82%, 56%)
CMYK	cmyk(0%, 81.9%, 70.1%, 43.5%)
CIE-LAB	lab(31.45, 48.44, 21.69)
CIE-LCH	lch(31.45, 53.07, 24.12°)
OKLab	oklab(42.8% 0.1431 0.0507)
OKLCH	oklch(42.8% 0.152 19.5)
XYZ	xyz(12.3084, 6.8444, 2.9580)
Luminance	0.0684 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901A2B #1A907F

analogous

#901A66 #901A2B #90441A

triadic

#901A2B #2B901A #1A2B90

tetradic

#901A2B #66901A #1A907F #441A90

square

#901A2B #66901A #1A907F #441A90

split-complementary

#901A2B #1A9044 #1A6690

monochromatic

#28070C #5C111C #901A2B #C4233A #DE475C

Accessibility & contrast

On white

8.87

#901A2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#901A2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901A2B

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901A2B	#FFFFFF	#000000	##FFFFFF
##901A2B	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3A2B

Deuteranopia (green-blind)

#5C5327

Tritanopia (blue-blind)

#9F0022

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901a2b;
/* rgb */ color: rgb(144, 26, 43);
/* oklch */ color: oklch(42.8% 0.152 19.5);

Tailwind

colors: {
  custom: {
    50: '#b86464',
    500: '#901a2b',
    950: '#000000',
  },
}

SCSS

$custom: #901a2b;
$custom-light: #b86464;
$custom-dark: #000000;

JSON

{
  "hex": "#901a2b",
  "rgb": {
    "r": 144,
    "g": 26,
    "b": 43
  },
  "hsl": {
    "h": 351.356,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.42796,
    "c": 0.15185,
    "h": 19.5
  },
  "luminance": 0.06842
}

Semantic roles & 50–950 ramp

primary

#901A2B

secondary

#47BFAE

accent

#ECD33C

background

#FCF6F5

surface

#F8EBEA

border

#D1C6C6

text

#130605

muted

#827A79

Preview Lab

Preview with #901A2B

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

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