#901B17#901B17

#901B17 is a dark, vivid red. Relative luminance 0.068; OKLCH L 42.6% C 0.153 H 28.0°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#901B17
RGB	rgb(144, 27, 23)
HSL	hsl(2, 72%, 33%)
HSV	hsv(2, 84%, 56%)
CMYK	cmyk(0%, 81.3%, 84%, 43.5%)
CIE-LAB	lab(31.29, 47.33, 33.77)
CIE-LCH	lch(31.29, 58.14, 35.51°)
OKLab	oklab(42.6% 0.1351 0.0718)
OKLCH	oklch(42.6% 0.153 28)
XYZ	xyz(12.0497, 6.7770, 1.4841)
Luminance	0.0678 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901B17 #178C90

analogous

#901750 #901B17 #905717

triadic

#901B17 #17901B #1B1790

tetradic

#901B17 #509017 #178C90 #571790

square

#901B17 #509017 #178C90 #571790

split-complementary

#901B17 #179057 #175090

monochromatic

#260706 #5B110F #901B17 #C5251F #E14641

Accessibility & contrast

On white

8.92

#901B17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#901B17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901B17

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901B17	#FFFFFF	#000000	##FFFFFF
##901B17	1.00	8.92	2.36	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413915

Deuteranopia (green-blind)

#5D5311

Tritanopia (blue-blind)

#9F001C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901b17;
/* rgb */ color: rgb(144, 27, 23);
/* oklch */ color: oklch(42.6% 0.153 28.0);

Tailwind

colors: {
  custom: {
    50: '#ba6355',
    500: '#901b17',
    950: '#000000',
  },
}

SCSS

$custom: #901b17;
$custom-light: #ba6355;
$custom-dark: #000000;

JSON

{
  "hex": "#901b17",
  "rgb": {
    "r": 144,
    "g": 27,
    "b": 23
  },
  "hsl": {
    "h": 1.983,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.42597,
    "c": 0.15298,
    "h": 28
  },
  "luminance": 0.06775
}

Semantic roles & 50–950 ramp

primary

#901B17

secondary

#42BDC1

accent

#E9EF39

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #901B17

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

Preview Lab → · Contrast checker → · Palette generator →