#A3333D#A3333D

#A3333D is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.0% C 0.147 H 19.4°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#A3333D
RGB	rgb(163, 51, 61)
HSL	hsl(355, 52%, 42%)
HSV	hsv(355, 69%, 64%)
CMYK	cmyk(0%, 68.7%, 62.6%, 36.1%)
CIE-LAB	lab(38.71, 46.60, 20.24)
CIE-LCH	lch(38.71, 50.81, 23.47°)
OKLab	oklab(48.98% 0.1385 0.0489)
OKLCH	oklch(48.98% 0.147 19.4)
XYZ	xyz(17.1321, 10.4935, 5.5373)
Luminance	0.1049 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3333D #33A399

analogous

#A33375 #A3333D #A36133

triadic

#A3333D #3DA333 #333DA3

tetradic

#A3333D #75A333 #33A399 #6133A3

square

#A3333D #75A333 #33A399 #6133A3

split-complementary

#A3333D #33A361 #3375A3

monochromatic

#46161A #74242C #A3333D #C74C57 #D67B83

Accessibility & contrast

On white

6.78

#A3333D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#A3333D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A3333D

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3333D	#FFFFFF	#000000	##FFFFFF
##A3333D	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504C3D

Deuteranopia (green-blind)

#6D643A

Tritanopia (blue-blind)

#B31837

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a3333d;
/* rgb */ color: rgb(163, 51, 61);
/* oklch */ color: oklch(49.0% 0.147 19.4);

Tailwind

colors: {
  custom: {
    50: '#c57272',
    500: '#a3333d',
    950: '#000000',
  },
}

SCSS

$custom: #a3333d;
$custom-light: #c57272;
$custom-dark: #000000;

JSON

{
  "hex": "#a3333d",
  "rgb": {
    "r": 163,
    "g": 51,
    "b": 61
  },
  "hsl": {
    "h": 354.643,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.48975,
    "c": 0.14689,
    "h": 19.4
  },
  "luminance": 0.10491
}

Semantic roles & 50–950 ramp

primary

#A3333D

secondary

#73BEB8

accent

#DCCF4C

background

#FCF7F6

surface

#F9EDEC

border

#D2C8C7

text

#140808

muted

#827B7B

Preview Lab

Preview with #A3333D

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

Preview Lab → · Contrast checker → · Palette generator →