#901B2C#901B2C

#901B2C is a dark, vivid red. Relative luminance 0.069; OKLCH L 42.9% C 0.151 H 19.2°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#901B2C
RGB	rgb(144, 27, 44)
HSL	hsl(351, 68%, 34%)
HSV	hsv(351, 81%, 56%)
CMYK	cmyk(0%, 81.3%, 69.4%, 43.5%)
CIE-LAB	lab(31.57, 48.20, 21.19)
CIE-LCH	lch(31.57, 52.65, 23.73°)
OKLab	oklab(42.89% 0.1426 0.0497)
OKLCH	oklch(42.89% 0.151 19.2)
XYZ	xyz(12.3495, 6.8969, 3.0634)
Luminance	0.0689 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901B2C #1B907F

analogous

#901B66 #901B2C #90441B

triadic

#901B2C #2C901B #1B2C90

tetradic

#901B2C #66901B #1B907F #441B90

square

#901B2C #66901B #1B907F #441B90

split-complementary

#901B2C #1B9044 #1B6690

monochromatic

#29080D #5C111C #901B2C #C4253C #DD495E

Accessibility & contrast

On white

8.83

#901B2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#901B2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901B2C

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901B2C	#FFFFFF	#000000	##FFFFFF
##901B2C	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3B2C

Deuteranopia (green-blind)

#5C5328

Tritanopia (blue-blind)

#9F0023

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901b2c;
/* rgb */ color: rgb(144, 27, 44);
/* oklch */ color: oklch(42.9% 0.151 19.2);

Tailwind

colors: {
  custom: {
    50: '#b86465',
    500: '#901b2c',
    950: '#000000',
  },
}

SCSS

$custom: #901b2c;
$custom-light: #b86465;
$custom-dark: #000000;

JSON

{
  "hex": "#901b2c",
  "rgb": {
    "r": 144,
    "g": 27,
    "b": 44
  },
  "hsl": {
    "h": 351.282,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42891,
    "c": 0.15103,
    "h": 19.2
  },
  "luminance": 0.06895
}

Semantic roles & 50–950 ramp

primary

#901B2C

secondary

#48BFAD

accent

#EBD23D

background

#FCF6F6

surface

#F8EBEB

border

#D1C6C6

text

#130605

muted

#827A7A

Preview Lab

Preview with #901B2C

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

Preview Lab → · Contrast checker → · Palette generator →