#901F3A#901F3A

#901F3A is a dark, vivid red. Relative luminance 0.072; OKLCH L 43.5% C 0.148 H 12.6°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#901F3A
RGB	rgb(144, 31, 58)
HSL	hsl(346, 65%, 34%)
HSV	hsv(346, 78%, 56%)
CMYK	cmyk(0%, 78.5%, 59.7%, 43.5%)
CIE-LAB	lab(32.30, 47.83, 12.99)
CIE-LCH	lch(32.30, 49.56, 15.20°)
OKLab	oklab(43.52% 0.1443 0.0322)
OKLCH	oklch(43.52% 0.148 12.6)
XYZ	xyz(12.7566, 7.2166, 4.7234)
Luminance	0.0722 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901F3A #1F9075

analogous

#901F73 #901F3A #903D1F

triadic

#901F3A #3A901F #1F3A90

tetradic

#901F3A #73901F #1F9075 #3D1F90

square

#901F3A #73901F #1F9075 #3D1F90

split-complementary

#901F3A #1F903D #1F7390

monochromatic

#2B0911 #5E1426 #901F3A #C22A4E #D95071

Accessibility & contrast

On white

8.60

#901F3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#901F3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901F3A

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901F3A	#FFFFFF	#000000	##FFFFFF
##901F3A	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3D3A

Deuteranopia (green-blind)

#5B5437

Tritanopia (blue-blind)

#9E002A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #901f3a;
/* rgb */ color: rgb(144, 31, 58);
/* oklch */ color: oklch(43.5% 0.148 12.6);

Tailwind

colors: {
  custom: {
    50: '#b7666f',
    500: '#901f3a',
    950: '#000000',
  },
}

SCSS

$custom: #901f3a;
$custom-light: #b7666f;
$custom-dark: #000000;

JSON

{
  "hex": "#901f3a",
  "rgb": {
    "r": 144,
    "g": 31,
    "b": 58
  },
  "hsl": {
    "h": 345.664,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.43517,
    "c": 0.14787,
    "h": 12.6
  },
  "luminance": 0.07215
}

Semantic roles & 50–950 ramp

primary

#901F3A

secondary

#4EBCA2

accent

#E8C040

background

#FCF6F6

surface

#F8EBEC

border

#D1C6C7

text

#120607

muted

#817A7A

Preview Lab

Preview with #901F3A

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

Preview Lab → · Contrast checker → · Palette generator →