#901C37#901C37

#901C37 is a dark, vivid red. Relative luminance 0.070; OKLCH L 43.2% C 0.150 H 13.6°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#901C37
RGB	rgb(144, 28, 55)
HSL	hsl(346, 67%, 34%)
HSV	hsv(346, 81%, 56%)
CMYK	cmyk(0%, 80.6%, 61.8%, 43.5%)
CIE-LAB	lab(31.89, 48.57, 14.42)
CIE-LCH	lch(31.89, 50.66, 16.54°)
OKLab	oklab(43.2% 0.1461 0.0354)
OKLCH	oklch(43.2% 0.15 13.6)
XYZ	xyz(12.6077, 7.0375, 4.3082)
Luminance	0.0704 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901C37 #1C9075

analogous

#901C71 #901C37 #903B1C

triadic

#901C37 #37901C #1C3790

tetradic

#901C37 #71901C #1C9075 #3B1C90

square

#901C37 #71901C #1C9075 #3B1C90

split-complementary

#901C37 #1C903B #1C7190

monochromatic

#2A0810 #5D1223 #901C37 #C3264B #DC4A6C

Accessibility & contrast

On white

8.72

#901C37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#901C37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901C37

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901C37	#FFFFFF	#000000	##FFFFFF
##901C37	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3C37

Deuteranopia (green-blind)

#5B5434

Tritanopia (blue-blind)

#9E0028

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #901c37;
/* rgb */ color: rgb(144, 28, 55);
/* oklch */ color: oklch(43.2% 0.150 13.6);

Tailwind

colors: {
  custom: {
    50: '#b7656d',
    500: '#901c37',
    950: '#000000',
  },
}

SCSS

$custom: #901c37;
$custom-light: #b7656d;
$custom-dark: #000000;

JSON

{
  "hex": "#901c37",
  "rgb": {
    "r": 144,
    "g": 28,
    "b": 55
  },
  "hsl": {
    "h": 346.034,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.43197,
    "c": 0.15036,
    "h": 13.6
  },
  "luminance": 0.07036
}

Semantic roles & 50–950 ramp

primary

#901C37

secondary

#4ABEA3

accent

#EAC23D

background

#FCF6F6

surface

#F8EBEB

border

#D1C6C6

text

#130607

muted

#827A7A

Preview Lab

Preview with #901C37

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

Preview Lab → · Contrast checker → · Palette generator →