#A33531#A33531

#A33531 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.0% C 0.146 H 26.1°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#A33531
RGB	rgb(163, 53, 49)
HSL	hsl(2, 54%, 42%)
HSV	hsv(2, 70%, 64%)
CMYK	cmyk(0%, 67.5%, 69.9%, 36.1%)
CIE-LAB	lab(38.82, 45.04, 27.76)
CIE-LCH	lch(38.82, 52.90, 31.65°)
OKLab	oklab(48.99% 0.1311 0.0643)
OKLCH	oklch(48.99% 0.146 26.1)
XYZ	xyz(16.9335, 10.5569, 4.0512)
Luminance	0.1055 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33531 #319FA3

analogous

#A33166 #A33531 #A36E31

triadic

#A33531 #31A335 #3531A3

tetradic

#A33531 #66A331 #319FA3 #6E31A3

square

#A33531 #66A331 #319FA3 #6E31A3

split-complementary

#A33531 #31A36E #3166A3

monochromatic

#451615 #742623 #A33531 #C84D49 #D67B78

Accessibility & contrast

On white

6.75

#A33531 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#A33531 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33531

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33531	#FFFFFF	#000000	##FFFFFF
##A33531	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534C30

Deuteranopia (green-blind)

#6F642E

Tritanopia (blue-blind)

#B31835

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a33531;
/* rgb */ color: rgb(163, 53, 49);
/* oklch */ color: oklch(49.0% 0.146 26.1);

Tailwind

colors: {
  custom: {
    50: '#c57369',
    500: '#a33531',
    950: '#000000',
  },
}

SCSS

$custom: #a33531;
$custom-light: #c57369;
$custom-dark: #000000;

JSON

{
  "hex": "#a33531",
  "rgb": {
    "r": 163,
    "g": 53,
    "b": 49
  },
  "hsl": {
    "h": 2.105,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.48993,
    "c": 0.14601,
    "h": 26.1
  },
  "luminance": 0.10554
}

Semantic roles & 50–950 ramp

primary

#A33531

secondary

#71BCBF

accent

#D8DD4B

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A33531

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

Preview Lab → · Contrast checker → · Palette generator →