#901F18#901F18

#901F18 is a dark, vivid red. Relative luminance 0.070; OKLCH L 42.9% C 0.150 H 28.7°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#901F18
RGB	rgb(144, 31, 24)
HSL	hsl(4, 71%, 33%)
HSV	hsv(4, 83%, 56%)
CMYK	cmyk(0%, 78.5%, 83.3%, 43.5%)
CIE-LAB	lab(31.75, 46.09, 33.65)
CIE-LCH	lch(31.75, 57.07, 36.14°)
OKLab	oklab(42.94% 0.1314 0.072)
OKLCH	oklch(42.94% 0.15 28.7)
XYZ	xyz(12.1579, 6.9772, 1.5705)
Luminance	0.0698 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901F18 #188990

analogous

#90184D #901F18 #905B18

triadic

#901F18 #18901F #1F1890

tetradic

#901F18 #4D9018 #188990 #5B1890

square

#901F18 #4D9018 #188990 #5B1890

split-complementary

#901F18 #18905B #184D90

monochromatic

#270807 #5C140F #901F18 #C42A21 #E04C43

Accessibility & contrast

On white

8.77

#901F18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#901F18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901F18

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901F18	#FFFFFF	#000000	##FFFFFF
##901F18	1.00	8.77	2.40	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423B16

Deuteranopia (green-blind)

#5E5412

Tritanopia (blue-blind)

#9F001F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #901f18;
/* rgb */ color: rgb(144, 31, 24);
/* oklch */ color: oklch(42.9% 0.150 28.7);

Tailwind

colors: {
  custom: {
    50: '#b96556',
    500: '#901f18',
    950: '#000000',
  },
}

SCSS

$custom: #901f18;
$custom-light: #b96556;
$custom-dark: #000000;

JSON

{
  "hex": "#901f18",
  "rgb": {
    "r": 144,
    "g": 31,
    "b": 24
  },
  "hsl": {
    "h": 3.5,
    "s": 71.429,
    "l": 32.941
  },
  "oklch": {
    "l": 0.42943,
    "c": 0.14981,
    "h": 28.7
  },
  "luminance": 0.06975
}

Semantic roles & 50–950 ramp

primary

#901F18

secondary

#43B9C0

accent

#E4EE3A

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #901F18

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

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