#A33D33#A33D33

#A33D33 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.0% C 0.137 H 28.5°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#A33D33
RGB	rgb(163, 61, 51)
HSL	hsl(5, 52%, 42%)
HSV	hsv(5, 69%, 64%)
CMYK	cmyk(0%, 62.6%, 68.7%, 36.1%)
CIE-LAB	lab(40.19, 41.56, 28.19)
CIE-LCH	lch(40.19, 50.22, 34.15°)
OKLab	oklab(50.03% 0.1206 0.0656)
OKLCH	oklch(50.03% 0.137 28.5)
XYZ	xyz(17.3723, 11.3654, 4.4103)
Luminance	0.1136 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33D33 #3399A3

analogous

#A33361 #A33D33 #A37533

triadic

#A33D33 #33A33D #3D33A3

tetradic

#A33D33 #61A333 #3399A3 #7533A3

square

#A33D33 #61A333 #3399A3 #7533A3

split-complementary

#A33D33 #33A375 #3361A3

monochromatic

#461A16 #742C24 #A33D33 #C7574C #D6837B

Accessibility & contrast

On white

6.42

#A33D33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#A33D33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33D33

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33D33	#FFFFFF	#000000	##FFFFFF
##A33D33	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585131

Deuteranopia (green-blind)

#726730

Tritanopia (blue-blind)

#B3263B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a33d33;
/* rgb */ color: rgb(163, 61, 51);
/* oklch */ color: oklch(50.0% 0.137 28.5);

Tailwind

colors: {
  custom: {
    50: '#c5776b',
    500: '#a33d33',
    950: '#000000',
  },
}

SCSS

$custom: #a33d33;
$custom-light: #c5776b;
$custom-dark: #000000;

JSON

{
  "hex": "#a33d33",
  "rgb": {
    "r": 163,
    "g": 61,
    "b": 51
  },
  "hsl": {
    "h": 5.357,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.50027,
    "c": 0.13725,
    "h": 28.5
  },
  "luminance": 0.11363
}

Semantic roles & 50–950 ramp

primary

#A33D33

secondary

#73B8BE

accent

#CFDC4C

background

#FCF7F6

surface

#F9EDEB

border

#D2C8C6

text

#140906

muted

#827B7A

Preview Lab

Preview with #A33D33

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

Preview Lab → · Contrast checker → · Palette generator →