#901A37#901A37

#901A37 is a dark, vivid red. Relative luminance 0.069; OKLCH L 43.0% C 0.152 H 13.2°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#901A37
RGB	rgb(144, 26, 55)
HSL	hsl(345, 69%, 33%)
HSV	hsv(345, 82%, 56%)
CMYK	cmyk(0%, 81.9%, 61.8%, 43.5%)
CIE-LAB	lab(31.68, 49.16, 14.14)
CIE-LCH	lch(31.68, 51.15, 16.05°)
OKLab	oklab(43.04% 0.148 0.0348)
OKLCH	oklch(43.04% 0.152 13.2)
XYZ	xyz(12.5619, 6.9458, 4.2929)
Luminance	0.0694 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901A37 #1A9073

analogous

#901A72 #901A37 #90381A

triadic

#901A37 #37901A #1A3790

tetradic

#901A37 #72901A #1A9073 #381A90

square

#901A37 #72901A #1A9073 #381A90

split-complementary

#901A37 #1A9038 #1A7290

monochromatic

#28070F #5C1123 #901A37 #C4234B #DE476C

Accessibility & contrast

On white

8.79

#901A37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#901A37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901A37

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901A37	#FFFFFF	#000000	##FFFFFF
##901A37	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3B37

Deuteranopia (green-blind)

#5A5334

Tritanopia (blue-blind)

#9E0027

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #901a37;
/* rgb */ color: rgb(144, 26, 55);
/* oklch */ color: oklch(43.0% 0.152 13.2);

Tailwind

colors: {
  custom: {
    50: '#b7646d',
    500: '#901a37',
    950: '#000000',
  },
}

SCSS

$custom: #901a37;
$custom-light: #b7646d;
$custom-dark: #000000;

JSON

{
  "hex": "#901a37",
  "rgb": {
    "r": 144,
    "g": 26,
    "b": 55
  },
  "hsl": {
    "h": 345.254,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.43043,
    "c": 0.15206,
    "h": 13.2
  },
  "luminance": 0.06944
}

Semantic roles & 50–950 ramp

primary

#901A37

secondary

#47BFA2

accent

#ECC13C

background

#FCF6F6

surface

#F8EBEB

border

#D1C6C6

text

#130607

muted

#827A7A

Preview Lab

Preview with #901A37

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

Preview Lab → · Contrast checker → · Palette generator →