#901B2A#901B2A

#901B2A is a dark, vivid red. Relative luminance 0.069; OKLCH L 42.9% C 0.151 H 20.2°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#901B2A
RGB	rgb(144, 27, 42)
HSL	hsl(352, 68%, 34%)
HSV	hsv(352, 81%, 56%)
CMYK	cmyk(0%, 81.3%, 70.8%, 43.5%)
CIE-LAB	lab(31.54, 48.09, 22.44)
CIE-LCH	lch(31.54, 53.07, 25.01°)
OKLab	oklab(42.86% 0.1418 0.0522)
OKLCH	oklch(42.86% 0.151 20.2)
XYZ	xyz(12.3129, 6.8822, 2.8701)
Luminance	0.0688 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901B2A #1B9081

analogous

#901B64 #901B2A #90461B

triadic

#901B2A #2A901B #1B2A90

tetradic

#901B2A #64901B #1B9081 #461B90

square

#901B2A #64901B #1B9081 #461B90

split-complementary

#901B2A #1B9046 #1B6490

monochromatic

#29080C #5C111B #901B2A #C42539 #DD495C

Accessibility & contrast

On white

8.84

#901B2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#901B2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901B2A

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901B2A	#FFFFFF	#000000	##FFFFFF
##901B2A	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3A2A

Deuteranopia (green-blind)

#5C5326

Tritanopia (blue-blind)

#9F0022

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901b2a;
/* rgb */ color: rgb(144, 27, 42);
/* oklch */ color: oklch(42.9% 0.151 20.2);

Tailwind

colors: {
  custom: {
    50: '#b86463',
    500: '#901b2a',
    950: '#000000',
  },
}

SCSS

$custom: #901b2a;
$custom-light: #b86463;
$custom-dark: #000000;

JSON

{
  "hex": "#901b2a",
  "rgb": {
    "r": 144,
    "g": 27,
    "b": 42
  },
  "hsl": {
    "h": 352.308,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42855,
    "c": 0.15111,
    "h": 20.2
  },
  "luminance": 0.0688
}

Semantic roles & 50–950 ramp

primary

#901B2A

secondary

#48BFAF

accent

#EBD53D

background

#FCF6F5

surface

#F8EBEA

border

#D1C6C6

text

#130605

muted

#827A79

Preview Lab

Preview with #901B2A

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

Preview Lab → · Contrast checker → · Palette generator →