#901B18#901B18

#901B18 is a dark, vivid red. Relative luminance 0.068; OKLCH L 42.6% C 0.153 H 27.7°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#901B18
RGB	rgb(144, 27, 24)
HSL	hsl(2, 71%, 33%)
HSV	hsv(2, 83%, 56%)
CMYK	cmyk(0%, 81.3%, 83.3%, 43.5%)
CIE-LAB	lab(31.30, 47.36, 33.21)
CIE-LCH	lch(31.30, 57.84, 35.04°)
OKLab	oklab(42.61% 0.1354 0.071)
OKLCH	oklch(42.61% 0.153 27.7)
XYZ	xyz(12.0599, 6.7811, 1.5379)
Luminance	0.0678 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901B18 #188D90

analogous

#901851 #901B18 #905718

triadic

#901B18 #18901B #1B1890

tetradic

#901B18 #519018 #188D90 #571890

square

#901B18 #519018 #188D90 #571890

split-complementary

#901B18 #189057 #185190

monochromatic

#270707 #5C110F #901B18 #C42521 #E04743

Accessibility & contrast

On white

8.91

#901B18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#901B18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901B18

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901B18	#FFFFFF	#000000	##FFFFFF
##901B18	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)

#413916

Deuteranopia (green-blind)

#5D5312

Tritanopia (blue-blind)

#9F001C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901b18;
/* rgb */ color: rgb(144, 27, 24);
/* oklch */ color: oklch(42.6% 0.153 27.7);

Tailwind

colors: {
  custom: {
    50: '#ba6356',
    500: '#901b18',
    950: '#000000',
  },
}

SCSS

$custom: #901b18;
$custom-light: #ba6356;
$custom-dark: #000000;

JSON

{
  "hex": "#901b18",
  "rgb": {
    "r": 144,
    "g": 27,
    "b": 24
  },
  "hsl": {
    "h": 1.5,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.42607,
    "c": 0.15285,
    "h": 27.7
  },
  "luminance": 0.06779
}

Semantic roles & 50–950 ramp

primary

#901B18

secondary

#43BDC0

accent

#EAEE3A

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #901B18

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

Preview Lab → · Contrast checker → · Palette generator →