#901D23#901D23

#901D23 is a dark, vivid red. Relative luminance 0.069; OKLCH L 42.9% C 0.150 H 23.9°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#901D23
RGB	rgb(144, 29, 35)
HSL	hsl(357, 66%, 34%)
HSV	hsv(357, 80%, 56%)
CMYK	cmyk(0%, 79.9%, 75.7%, 43.5%)
CIE-LAB	lab(31.65, 47.15, 27.01)
CIE-LCH	lch(31.65, 54.33, 29.80°)
OKLab	oklab(42.91% 0.1371 0.0609)
OKLCH	oklch(42.91% 0.15 23.9)
XYZ	xyz(12.2458, 6.9313, 2.2829)
Luminance	0.0693 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901D23 #1D908A

analogous

#901D5D #901D23 #90511D

triadic

#901D23 #23901D #1D2390

tetradic

#901D23 #5D901D #1D908A #511D90

square

#901D23 #5D901D #1D908A #511D90

split-complementary

#901D23 #1D9051 #1D5D90

monochromatic

#2A080A #5D1317 #901D23 #C3272F #DB4C54

Accessibility & contrast

On white

8.80

#901D23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#901D23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901D23

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901D23	#FFFFFF	#000000	##FFFFFF
##901D23	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403B22

Deuteranopia (green-blind)

#5D531F

Tritanopia (blue-blind)

#9F0021

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901d23;
/* rgb */ color: rgb(144, 29, 35);
/* oklch */ color: oklch(42.9% 0.150 23.9);

Tailwind

colors: {
  custom: {
    50: '#b9645e',
    500: '#901d23',
    950: '#000000',
  },
}

SCSS

$custom: #901d23;
$custom-light: #b9645e;
$custom-dark: #000000;

JSON

{
  "hex": "#901d23",
  "rgb": {
    "r": 144,
    "g": 29,
    "b": 35
  },
  "hsl": {
    "h": 356.87,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.42905,
    "c": 0.15004,
    "h": 23.9
  },
  "luminance": 0.06929
}

Semantic roles & 50–950 ramp

primary

#901D23

secondary

#4BBDB7

accent

#E9E03E

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130604

muted

#827A79

Preview Lab

Preview with #901D23

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

Preview Lab → · Contrast checker → · Palette generator →