#901D1D#901D1D

#901D1D is a dark, vivid red. Relative luminance 0.069; OKLCH L 42.8% C 0.151 H 26.4°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#901D1D
RGB	rgb(144, 29, 29)
HSL	hsl(0, 66%, 34%)
HSV	hsv(0, 80%, 56%)
CMYK	cmyk(0%, 79.9%, 79.9%, 43.5%)
CIE-LAB	lab(31.58, 46.91, 30.58)
CIE-LCH	lch(31.58, 55.99, 33.10°)
OKLab	oklab(42.83% 0.135 0.067)
OKLCH	oklch(42.83% 0.151 26.4)
XYZ	xyz(12.1642, 6.8987, 1.8532)
Luminance	0.0690 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901D1D #1D9090

analogous

#901D57 #901D1D #90571D

triadic

#901D1D #1D901D #1D1D90

tetradic

#901D1D #57901D #1D9090 #571D90

square

#901D1D #57901D #1D9090 #571D90

split-complementary

#901D1D #1D9057 #1D5790

monochromatic

#2A0808 #5D1313 #901D1D #C32727 #DB4C4C

Accessibility & contrast

On white

8.83

#901D1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#901D1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901D1D

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901D1D	#FFFFFF	#000000	##FFFFFF
##901D1D	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413A1B

Deuteranopia (green-blind)

#5D5318

Tritanopia (blue-blind)

#9F001F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901d1d;
/* rgb */ color: rgb(144, 29, 29);
/* oklch */ color: oklch(42.8% 0.151 26.4);

Tailwind

colors: {
  custom: {
    50: '#b96459',
    500: '#901d1d',
    950: '#000000',
  },
}

SCSS

$custom: #901d1d;
$custom-light: #b96459;
$custom-dark: #000000;

JSON

{
  "hex": "#901d1d",
  "rgb": {
    "r": 144,
    "g": 29,
    "b": 29
  },
  "hsl": {
    "h": 0,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.42825,
    "c": 0.15072,
    "h": 26.4
  },
  "luminance": 0.06897
}

Semantic roles & 50–950 ramp

primary

#901D1D

secondary

#4BBDBD

accent

#E9E93E

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #901D1D

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

Preview Lab → · Contrast checker → · Palette generator →