#A33F3A#A33F3A

#A33F3A is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.4% C 0.134 H 25.9°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#A33F3A
RGB	rgb(163, 63, 58)
HSL	hsl(3, 48%, 43%)
HSV	hsv(3, 64%, 64%)
CMYK	cmyk(0%, 61.3%, 64.4%, 36.1%)
CIE-LAB	lab(40.65, 41.05, 24.56)
CIE-LCH	lch(40.65, 47.83, 30.89°)
OKLab	oklab(50.41% 0.1204 0.0584)
OKLCH	oklch(50.41% 0.134 25.9)
XYZ	xyz(17.6472, 11.6494, 5.3214)
Luminance	0.1165 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33F3A #3A9EA3

analogous

#A33A69 #A33F3A #A3733A

triadic

#A33F3A #3AA33F #3F3AA3

tetradic

#A33F3A #69A33A #3A9EA3 #733AA3

square

#A33F3A #69A33A #3A9EA3 #733AA3

split-complementary

#A33F3A #3AA373 #3A69A3

monochromatic

#491C1A #762E2A #A33F3A #C35C57 #D38884

Accessibility & contrast

On white

6.31

#A33F3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#A33F3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33F3A

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33F3A	#FFFFFF	#000000	##FFFFFF
##A33F3A	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595239

Deuteranopia (green-blind)

#726837

Tritanopia (blue-blind)

#B32B3F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a33f3a;
/* rgb */ color: rgb(163, 63, 58);
/* oklch */ color: oklch(50.4% 0.134 25.9);

Tailwind

colors: {
  custom: {
    50: '#c47870',
    500: '#a33f3a',
    950: '#000000',
  },
}

SCSS

$custom: #a33f3a;
$custom-light: #c47870;
$custom-dark: #000000;

JSON

{
  "hex": "#a33f3a",
  "rgb": {
    "r": 163,
    "g": 63,
    "b": 58
  },
  "hsl": {
    "h": 2.857,
    "s": 47.511,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50412,
    "c": 0.13378,
    "h": 25.9
  },
  "luminance": 0.11647
}

Semantic roles & 50–950 ramp

primary

#A33F3A

secondary

#7CBABD

accent

#D1D751

background

#FCF7F6

surface

#F9EEEC

border

#D2C9C7

text

#140907

muted

#827B7A

Preview Lab

Preview with #A33F3A

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

Preview Lab → · Contrast checker → · Palette generator →