#901B13#901B13

#901B13 is a dark, vivid red. Relative luminance 0.068; OKLCH L 42.6% C 0.153 H 29.2°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#901B13
RGB	rgb(144, 27, 19)
HSL	hsl(4, 77%, 32%)
HSV	hsv(4, 87%, 56%)
CMYK	cmyk(0%, 81.3%, 86.8%, 43.5%)
CIE-LAB	lab(31.26, 47.22, 35.90)
CIE-LCH	lch(31.26, 59.32, 37.25°)
OKLab	oklab(42.56% 0.134 0.0749)
OKLCH	oklch(42.56% 0.153 29.2)
XYZ	xyz(12.0126, 6.7621, 1.2887)
Luminance	0.0676 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901B13 #138890

analogous

#90134A #901B13 #905A13

triadic

#901B13 #13901B #1B1390

tetradic

#901B13 #4A9013 #138890 #5A1390

square

#901B13 #4A9013 #138890 #5A1390

split-complementary

#901B13 #13905A #134A90

monochromatic

#240705 #5A110C #901B13 #C6251A #E54439

Accessibility & contrast

On white

8.93

#901B13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#901B13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901B13

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901B13	#FFFFFF	#000000	##FFFFFF
##901B13	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413910

Deuteranopia (green-blind)

#5D530B

Tritanopia (blue-blind)

#9F001B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901b13;
/* rgb */ color: rgb(144, 27, 19);
/* oklch */ color: oklch(42.6% 0.153 29.2);

Tailwind

colors: {
  custom: {
    50: '#ba6352',
    500: '#901b13',
    950: '#000000',
  },
}

SCSS

$custom: #901b13;
$custom-light: #ba6352;
$custom-dark: #000000;

JSON

{
  "hex": "#901b13",
  "rgb": {
    "r": 144,
    "g": 27,
    "b": 19
  },
  "hsl": {
    "h": 3.84,
    "s": 76.687,
    "l": 31.961
  },
  "oklch": {
    "l": 0.4256,
    "c": 0.15347,
    "h": 29.2
  },
  "luminance": 0.0676
}

Semantic roles & 50–950 ramp

primary

#901B13

secondary

#3BBBC4

accent

#E7F335

background

#FCF6F4

surface

#F8EBE7

border

#D1C6C3

text

#140602

muted

#827A78

Preview Lab

Preview with #901B13

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

Preview Lab → · Contrast checker → · Palette generator →