#901B1A#901B1A

#901B1A is a dark, vivid red. Relative luminance 0.068; OKLCH L 42.6% C 0.153 H 27.0°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#901B1A
RGB	rgb(144, 27, 26)
HSL	hsl(1, 69%, 33%)
HSV	hsv(1, 82%, 56%)
CMYK	cmyk(0%, 81.3%, 81.9%, 43.5%)
CIE-LAB	lab(31.32, 47.42, 32.08)
CIE-LCH	lch(31.32, 57.25, 34.08°)
OKLab	oklab(42.63% 0.136 0.0693)
OKLCH	oklch(42.63% 0.153 27)
XYZ	xyz(12.0815, 6.7897, 1.6515)
Luminance	0.0679 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901B1A #1A8F90

analogous

#901A54 #901B1A #90561A

triadic

#901B1A #1A901B #1B1A90

tetradic

#901B1A #54901A #1A8F90 #561A90

square

#901B1A #54901A #1A8F90 #561A90

split-complementary

#901B1A #1A9056 #1A5490

monochromatic

#280807 #5C1111 #901B1A #C42523 #DE4847

Accessibility & contrast

On white

8.91

#901B1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#901B1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901B1A

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901B1A	#FFFFFF	#000000	##FFFFFF
##901B1A	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403918

Deuteranopia (green-blind)

#5D5314

Tritanopia (blue-blind)

#9F001D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901b1a;
/* rgb */ color: rgb(144, 27, 26);
/* oklch */ color: oklch(42.6% 0.153 27.0);

Tailwind

colors: {
  custom: {
    50: '#b96457',
    500: '#901b1a',
    950: '#000000',
  },
}

SCSS

$custom: #901b1a;
$custom-light: #b96457;
$custom-dark: #000000;

JSON

{
  "hex": "#901b1a",
  "rgb": {
    "r": 144,
    "g": 27,
    "b": 26
  },
  "hsl": {
    "h": 0.508,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.42628,
    "c": 0.15261,
    "h": 27
  },
  "luminance": 0.06788
}

Semantic roles & 50–950 ramp

primary

#901B1A

secondary

#47BEBF

accent

#EBEC3C

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #901B1A

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

Preview Lab → · Contrast checker → · Palette generator →