#901B2D#901B2D

#901B2D is a dark, vivid red. Relative luminance 0.069; OKLCH L 42.9% C 0.151 H 18.7°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#901B2D
RGB	rgb(144, 27, 45)
HSL	hsl(351, 68%, 34%)
HSV	hsv(351, 81%, 56%)
CMYK	cmyk(0%, 81.3%, 68.7%, 43.5%)
CIE-LAB	lab(31.59, 48.25, 20.56)
CIE-LCH	lch(31.59, 52.45, 23.08°)
OKLab	oklab(42.91% 0.143 0.0485)
OKLCH	oklch(42.91% 0.151 18.7)
XYZ	xyz(12.3686, 6.9045, 3.1636)
Luminance	0.0690 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901B2D #1B907E

analogous

#901B67 #901B2D #90431B

triadic

#901B2D #2D901B #1B2D90

tetradic

#901B2D #67901B #1B907E #431B90

square

#901B2D #67901B #1B907E #431B90

split-complementary

#901B2D #1B9043 #1B6790

monochromatic

#29080D #5C111D #901B2D #C4253D #DD495F

Accessibility & contrast

On white

8.82

#901B2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#901B2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901B2D

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901B2D	#FFFFFF	#000000	##FFFFFF
##901B2D	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E3B2D

Deuteranopia (green-blind)

#5C5329

Tritanopia (blue-blind)

#9F0023

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #901b2d;
/* rgb */ color: rgb(144, 27, 45);
/* oklch */ color: oklch(42.9% 0.151 18.7);

Tailwind

colors: {
  custom: {
    50: '#b86465',
    500: '#901b2d',
    950: '#000000',
  },
}

SCSS

$custom: #901b2d;
$custom-light: #b86465;
$custom-dark: #000000;

JSON

{
  "hex": "#901b2d",
  "rgb": {
    "r": 144,
    "g": 27,
    "b": 45
  },
  "hsl": {
    "h": 350.769,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42909,
    "c": 0.15099,
    "h": 18.7
  },
  "luminance": 0.06903
}

Semantic roles & 50–950 ramp

primary

#901B2D

secondary

#48BFAC

accent

#EBD03D

background

#FCF6F6

surface

#F8EBEB

border

#D1C6C6

text

#130605

muted

#827A7A

Preview Lab

Preview with #901B2D

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

Preview Lab → · Contrast checker → · Palette generator →