#901A1A#901A1A

#901A1A is a dark, vivid red. Relative luminance 0.067; OKLCH L 42.5% C 0.153 H 26.8°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#901A1A
RGB	rgb(144, 26, 26)
HSL	hsl(0, 69%, 33%)
HSV	hsv(0, 82%, 56%)
CMYK	cmyk(0%, 81.9%, 81.9%, 43.5%)
CIE-LAB	lab(31.22, 47.72, 31.98)
CIE-LCH	lch(31.22, 57.44, 33.83°)
OKLab	oklab(42.55% 0.1369 0.069)
OKLCH	oklch(42.55% 0.153 26.8)
XYZ	xyz(12.0589, 6.7446, 1.6440)
Luminance	0.0674 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#901A1A #1A9090

analogous

#901A55 #901A1A #90551A

triadic

#901A1A #1A901A #1A1A90

tetradic

#901A1A #55901A #1A9090 #551A90

square

#901A1A #55901A #1A9090 #551A90

split-complementary

#901A1A #1A9055 #1A5590

monochromatic

#280707 #5C1111 #901A1A #C42323 #DE4747

Accessibility & contrast

On white

8.94

#901A1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#901A1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #901A1A

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##901A1A	#FFFFFF	#000000	##FFFFFF
##901A1A	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#403918

Deuteranopia (green-blind)

#5D5314

Tritanopia (blue-blind)

#9F001C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #901a1a;
/* rgb */ color: rgb(144, 26, 26);
/* oklch */ color: oklch(42.5% 0.153 26.8);

Tailwind

colors: {
  custom: {
    50: '#b96357',
    500: '#901a1a',
    950: '#000000',
  },
}

SCSS

$custom: #901a1a;
$custom-light: #b96357;
$custom-dark: #000000;

JSON

{
  "hex": "#901a1a",
  "rgb": {
    "r": 144,
    "g": 26,
    "b": 26
  },
  "hsl": {
    "h": 0,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.4255,
    "c": 0.15333,
    "h": 26.8
  },
  "luminance": 0.06743
}

Semantic roles & 50–950 ramp

primary

#901A1A

secondary

#47BFBF

accent

#ECEC3C

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130603

muted

#827A78

Preview Lab

Preview with #901A1A

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

Preview Lab → · Contrast checker → · Palette generator →