#901F21#901F21

#901F21 is a dark, vivid red. Relative luminance 0.070; OKLCH L 43.0% C 0.149 H 25.3°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#901F21
RGB	rgb(144, 31, 33)
HSL	hsl(359, 65%, 34%)
HSV	hsv(359, 78%, 56%)
CMYK	cmyk(0%, 78.5%, 77.1%, 43.5%)
CIE-LAB	lab(31.85, 46.41, 28.47)
CIE-LCH	lch(31.85, 54.45, 31.52°)
OKLab	oklab(43.05% 0.1344 0.0635)
OKLCH	oklch(43.05% 0.149 25.3)
XYZ	xyz(12.2675, 7.0210, 2.1478)
Luminance	0.0702 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901F21 #1F908E

analogous

#901F5A #901F21 #90561F

triadic

#901F21 #21901F #1F2190

tetradic

#901F21 #5A901F #1F908E #561F90

square

#901F21 #5A901F #1F908E #561F90

split-complementary

#901F21 #1F9056 #1F5A90

monochromatic

#2B090A #5E1415 #901F21 #C22A2D #D95052

Accessibility & contrast

On white

8.74

#901F21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#901F21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901F21

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901F21	#FFFFFF	#000000	##FFFFFF
##901F21	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423B20

Deuteranopia (green-blind)

#5E541D

Tritanopia (blue-blind)

#9F0021

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #901f21;
/* rgb */ color: rgb(144, 31, 33);
/* oklch */ color: oklch(43.0% 0.149 25.3);

Tailwind

colors: {
  custom: {
    50: '#b9655c',
    500: '#901f21',
    950: '#000000',
  },
}

SCSS

$custom: #901f21;
$custom-light: #b9655c;
$custom-dark: #000000;

JSON

{
  "hex": "#901f21",
  "rgb": {
    "r": 144,
    "g": 31,
    "b": 33
  },
  "hsl": {
    "h": 358.938,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.43049,
    "c": 0.14863,
    "h": 25.3
  },
  "luminance": 0.07019
}

Semantic roles & 50–950 ramp

primary

#901F21

secondary

#4EBCBA

accent

#E8E540

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130604

muted

#827A79

Preview Lab

Preview with #901F21

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

Preview Lab → · Contrast checker → · Palette generator →