#A3221A#A3221A

#A3221A is a mid, vivid red. Relative luminance 0.090; OKLCH L 46.8% C 0.166 H 28.9°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#A3221A
RGB	rgb(163, 34, 26)
HSL	hsl(4, 72%, 37%)
HSV	hsv(4, 84%, 64%)
CMYK	cmyk(0%, 79.1%, 84%, 36.1%)
CIE-LAB	lab(36.00, 51.16, 37.96)
CIE-LCH	lch(36.00, 63.71, 36.57°)
OKLab	oklab(46.8% 0.1455 0.0803)
OKLCH	oklch(46.8% 0.166 28.9)
XYZ	xyz(15.8647, 9.0077, 1.8804)
Luminance	0.0901 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3221A #1A9BA3

analogous

#A31A56 #A3221A #A3671A

triadic

#A3221A #1AA322 #221AA3

tetradic

#A3221A #56A31A #1A9BA3 #671AA3

square

#A3221A #56A31A #1A9BA3 #671AA3

split-complementary

#A3221A #1AA367 #1A56A3

monochromatic

#390C09 #6E1712 #A3221A #D82D22 #E45C54

Accessibility & contrast

On white

7.50

#A3221A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#A3221A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A3221A

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3221A	#FFFFFF	#000000	##FFFFFF
##A3221A	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4317

Deuteranopia (green-blind)

#6B5F13

Tritanopia (blue-blind)

#B40022

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #a3221a;
/* rgb */ color: rgb(163, 34, 26);
/* oklch */ color: oklch(46.8% 0.166 28.9);

Tailwind

colors: {
  custom: {
    50: '#c86958',
    500: '#a3221a',
    950: '#000000',
  },
}

SCSS

$custom: #a3221a;
$custom-light: #c86958;
$custom-dark: #000000;

JSON

{
  "hex": "#a3221a",
  "rgb": {
    "r": 163,
    "g": 34,
    "b": 26
  },
  "hsl": {
    "h": 3.504,
    "s": 72.487,
    "l": 37.059
  },
  "oklch": {
    "l": 0.46798,
    "c": 0.1662,
    "h": 28.9
  },
  "luminance": 0.09005
}

Semantic roles & 50–950 ramp

primary

#A3221A

secondary

#52C0C7

accent

#E5EF39

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A3221A

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

Preview Lab → · Contrast checker → · Palette generator →