#A33633#A33633

#A33633 is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.1% C 0.145 H 25.6°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#A33633
RGB	rgb(163, 54, 51)
HSL	hsl(2, 52%, 42%)
HSV	hsv(2, 69%, 64%)
CMYK	cmyk(0%, 66.9%, 68.7%, 36.1%)
CIE-LAB	lab(39.01, 44.71, 26.77)
CIE-LCH	lch(39.01, 52.12, 30.91°)
OKLab	oklab(49.14% 0.1305 0.0624)
OKLCH	oklch(49.14% 0.145 25.6)
XYZ	xyz(17.0227, 10.6663, 4.2938)
Luminance	0.1066 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33633 #33A0A3

analogous

#A33368 #A33633 #A36E33

triadic

#A33633 #33A336 #3633A3

tetradic

#A33633 #68A333 #33A0A3 #6E33A3

square

#A33633 #68A333 #33A0A3 #6E33A3

split-complementary

#A33633 #33A36E #3368A3

monochromatic

#461716 #742724 #A33633 #C74F4C #D67D7B

Accessibility & contrast

On white

6.70

#A33633 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#A33633 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33633

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33633	#FFFFFF	#000000	##FFFFFF
##A33633	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544D32

Deuteranopia (green-blind)

#6F6530

Tritanopia (blue-blind)

#B31A36

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a33633;
/* rgb */ color: rgb(163, 54, 51);
/* oklch */ color: oklch(49.1% 0.145 25.6);

Tailwind

colors: {
  custom: {
    50: '#c5736b',
    500: '#a33633',
    950: '#000000',
  },
}

SCSS

$custom: #a33633;
$custom-light: #c5736b;
$custom-dark: #000000;

JSON

{
  "hex": "#a33633",
  "rgb": {
    "r": 163,
    "g": 54,
    "b": 51
  },
  "hsl": {
    "h": 1.607,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.49144,
    "c": 0.14467,
    "h": 25.6
  },
  "luminance": 0.10664
}

Semantic roles & 50–950 ramp

primary

#A33633

secondary

#73BCBE

accent

#D8DC4C

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A33633

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

Preview Lab → · Contrast checker → · Palette generator →