#A33933#A33933

#A33933 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.5% C 0.141 H 26.8°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#A33933
RGB	rgb(163, 57, 51)
HSL	hsl(3, 52%, 42%)
HSV	hsv(3, 69%, 64%)
CMYK	cmyk(0%, 65%, 68.7%, 36.1%)
CIE-LAB	lab(39.50, 43.39, 27.37)
CIE-LCH	lch(39.50, 51.30, 32.24°)
OKLab	oklab(49.51% 0.1263 0.0637)
OKLCH	oklch(49.51% 0.142 26.8)
XYZ	xyz(17.1667, 10.9542, 4.3417)
Luminance	0.1095 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33933 #339DA3

analogous

#A33365 #A33933 #A37133

triadic

#A33933 #33A339 #3933A3

tetradic

#A33933 #65A333 #339DA3 #7133A3

square

#A33933 #65A333 #339DA3 #7133A3

split-complementary

#A33933 #33A371 #3365A3

monochromatic

#461816 #742924 #A33933 #C7534C #D6807B

Accessibility & contrast

On white

6.58

#A33933 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#A33933 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33933

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33933	#FFFFFF	#000000	##FFFFFF
##A33933	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564F32

Deuteranopia (green-blind)

#706630

Tritanopia (blue-blind)

#B32038

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a33933;
/* rgb */ color: rgb(163, 57, 51);
/* oklch */ color: oklch(49.5% 0.141 26.8);

Tailwind

colors: {
  custom: {
    50: '#c5756b',
    500: '#a33933',
    950: '#000000',
  },
}

SCSS

$custom: #a33933;
$custom-light: #c5756b;
$custom-dark: #000000;

JSON

{
  "hex": "#a33933",
  "rgb": {
    "r": 163,
    "g": 57,
    "b": 51
  },
  "hsl": {
    "h": 3.214,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.49512,
    "c": 0.1415,
    "h": 26.8
  },
  "luminance": 0.10952
}

Semantic roles & 50–950 ramp

primary

#A33933

secondary

#73BABE

accent

#D4DC4C

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A33933

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

Preview Lab → · Contrast checker → · Palette generator →