#901D37#901D37

#901D37 is a dark, vivid red. Relative luminance 0.071; OKLCH L 43.3% C 0.149 H 13.8°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#901D37
RGB	rgb(144, 29, 55)
HSL	hsl(346, 66%, 34%)
HSV	hsv(346, 80%, 56%)
CMYK	cmyk(0%, 79.9%, 61.8%, 43.5%)
CIE-LAB	lab(32.00, 48.26, 14.57)
CIE-LCH	lch(32.00, 50.41, 16.80°)
OKLab	oklab(43.28% 0.1451 0.0357)
OKLCH	oklch(43.28% 0.149 13.8)
XYZ	xyz(12.6319, 7.0857, 4.3162)
Luminance	0.0708 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901D37 #1D9076

analogous

#901D71 #901D37 #903D1D

triadic

#901D37 #37901D #1D3790

tetradic

#901D37 #71901D #1D9076 #3D1D90

square

#901D37 #71901D #1D9076 #3D1D90

split-complementary

#901D37 #1D903D #1D7190

monochromatic

#2A0810 #5D1324 #901D37 #C3274A #DB4C6D

Accessibility & contrast

On white

8.69

#901D37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#901D37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901D37

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901D37	#FFFFFF	#000000	##FFFFFF
##901D37	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3C37

Deuteranopia (green-blind)

#5B5434

Tritanopia (blue-blind)

#9E0028

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #901d37;
/* rgb */ color: rgb(144, 29, 55);
/* oklch */ color: oklch(43.3% 0.149 13.8);

Tailwind

colors: {
  custom: {
    50: '#b7656d',
    500: '#901d37',
    950: '#000000',
  },
}

SCSS

$custom: #901d37;
$custom-light: #b7656d;
$custom-dark: #000000;

JSON

{
  "hex": "#901d37",
  "rgb": {
    "r": 144,
    "g": 29,
    "b": 55
  },
  "hsl": {
    "h": 346.435,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.43278,
    "c": 0.14948,
    "h": 13.8
  },
  "luminance": 0.07084
}

Semantic roles & 50–950 ramp

primary

#901D37

secondary

#4BBDA4

accent

#E9C33E

background

#FCF6F6

surface

#F8EBEB

border

#D1C6C6

text

#130607

muted

#827A7A

Preview Lab

Preview with #901D37

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

Preview Lab → · Contrast checker → · Palette generator →