#A33431#A33431

#A33431 is a mid, vivid red. Relative luminance 0.105; OKLCH L 48.9% C 0.147 H 25.7°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#A33431
RGB	rgb(163, 52, 49)
HSL	hsl(2, 54%, 42%)
HSV	hsv(2, 70%, 64%)
CMYK	cmyk(0%, 68.1%, 69.9%, 36.1%)
CIE-LAB	lab(38.67, 45.46, 27.57)
CIE-LCH	lch(38.67, 53.17, 31.23°)
OKLab	oklab(48.88% 0.1324 0.0639)
OKLCH	oklch(48.88% 0.147 25.7)
XYZ	xyz(16.8884, 10.4667, 4.0361)
Luminance	0.1046 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33431 #31A0A3

analogous

#A33167 #A33431 #A36D31

triadic

#A33431 #31A334 #3431A3

tetradic

#A33431 #67A331 #31A0A3 #6D31A3

square

#A33431 #67A331 #31A0A3 #6D31A3

split-complementary

#A33431 #31A36D #3167A3

monochromatic

#451615 #742523 #A33431 #C84C49 #D67A78

Accessibility & contrast

On white

6.79

#A33431 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#A33431 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33431

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33431	#FFFFFF	#000000	##FFFFFF
##A33431	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534C30

Deuteranopia (green-blind)

#6E642E

Tritanopia (blue-blind)

#B31634

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a33431;
/* rgb */ color: rgb(163, 52, 49);
/* oklch */ color: oklch(48.9% 0.147 25.7);

Tailwind

colors: {
  custom: {
    50: '#c57269',
    500: '#a33431',
    950: '#000000',
  },
}

SCSS

$custom: #a33431;
$custom-light: #c57269;
$custom-dark: #000000;

JSON

{
  "hex": "#a33431",
  "rgb": {
    "r": 163,
    "g": 52,
    "b": 49
  },
  "hsl": {
    "h": 1.579,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.48875,
    "c": 0.14703,
    "h": 25.7
  },
  "luminance": 0.10464
}

Semantic roles & 50–950 ramp

primary

#A33431

secondary

#71BDBF

accent

#D9DD4B

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A33431

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

Preview Lab → · Contrast checker → · Palette generator →