#A33733#A33733

#A33733 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.3% C 0.144 H 26.0°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#A33733
RGB	rgb(163, 55, 51)
HSL	hsl(2, 52%, 42%)
HSV	hsv(2, 69%, 64%)
CMYK	cmyk(0%, 66.3%, 68.7%, 36.1%)
CIE-LAB	lab(39.17, 44.28, 26.97)
CIE-LCH	lch(39.17, 51.85, 31.34°)
OKLab	oklab(49.26% 0.1291 0.0629)
OKLCH	oklch(49.26% 0.144 26)
XYZ	xyz(17.0698, 10.7603, 4.3094)
Luminance	0.1076 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33733 #339FA3

analogous

#A33367 #A33733 #A36F33

triadic

#A33733 #33A337 #3733A3

tetradic

#A33733 #67A333 #339FA3 #6F33A3

square

#A33733 #67A333 #339FA3 #6F33A3

split-complementary

#A33733 #33A36F #3367A3

monochromatic

#461816 #742724 #A33733 #C7514C #D67E7B

Accessibility & contrast

On white

6.66

#A33733 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#A33733 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33733

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33733	#FFFFFF	#000000	##FFFFFF
##A33733	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544E32

Deuteranopia (green-blind)

#6F6530

Tritanopia (blue-blind)

#B31C37

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a33733;
/* rgb */ color: rgb(163, 55, 51);
/* oklch */ color: oklch(49.3% 0.144 26.0);

Tailwind

colors: {
  custom: {
    50: '#c5746b',
    500: '#a33733',
    950: '#000000',
  },
}

SCSS

$custom: #a33733;
$custom-light: #c5746b;
$custom-dark: #000000;

JSON

{
  "hex": "#a33733",
  "rgb": {
    "r": 163,
    "g": 55,
    "b": 51
  },
  "hsl": {
    "h": 2.143,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.49264,
    "c": 0.14361,
    "h": 26
  },
  "luminance": 0.10758
}

Semantic roles & 50–950 ramp

primary

#A33733

secondary

#73BCBE

accent

#D7DC4C

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A33733

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

Preview Lab → · Contrast checker → · Palette generator →