#901F3B#901F3B

#901F3B is a dark, vivid red. Relative luminance 0.072; OKLCH L 43.5% C 0.148 H 12.0°. Best body text is #FFFFFF at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#901F3B
RGB	rgb(144, 31, 59)
HSL	hsl(345, 65%, 34%)
HSV	hsv(345, 78%, 56%)
CMYK	cmyk(0%, 78.5%, 59%, 43.5%)
CIE-LAB	lab(32.32, 47.90, 12.37)
CIE-LCH	lch(32.32, 49.47, 14.48°)
OKLab	oklab(43.54% 0.1447 0.0308)
OKLCH	oklch(43.54% 0.148 12)
XYZ	xyz(12.7823, 7.2269, 4.8587)
Luminance	0.0722 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901F3B #1F9074

analogous

#901F74 #901F3B #903C1F

triadic

#901F3B #3B901F #1F3B90

tetradic

#901F3B #74901F #1F9074 #3C1F90

square

#901F3B #74901F #1F9074 #3C1F90

split-complementary

#901F3B #1F903C #1F7490

monochromatic

#2B0912 #5E1426 #901F3B #C22A50 #D95072

Accessibility & contrast

On white

8.59

#901F3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#901F3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901F3B

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901F3B	#FFFFFF	#000000	##FFFFFF
##901F3B	1.00	8.59	2.44	8.59
#FFFFFF	8.59	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3D3B

Deuteranopia (green-blind)

#5B5438

Tritanopia (blue-blind)

#9E002B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #901f3b;
/* rgb */ color: rgb(144, 31, 59);
/* oklch */ color: oklch(43.5% 0.148 12.0);

Tailwind

colors: {
  custom: {
    50: '#b76670',
    500: '#901f3b',
    950: '#000000',
  },
}

SCSS

$custom: #901f3b;
$custom-light: #b76670;
$custom-dark: #000000;

JSON

{
  "hex": "#901f3b",
  "rgb": {
    "r": 144,
    "g": 31,
    "b": 59
  },
  "hsl": {
    "h": 345.133,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.43541,
    "c": 0.14796,
    "h": 12
  },
  "luminance": 0.07225
}

Semantic roles & 50–950 ramp

primary

#901F3B

secondary

#4EBCA1

accent

#E8BE40

background

#FCF6F6

surface

#F8EBEC

border

#D1C6C7

text

#120607

muted

#817A7A

Preview Lab

Preview with #901F3B

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

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