#A3302B#A3302B

#A3302B is a mid, vivid red. Relative luminance 0.101; OKLCH L 48.3% C 0.152 H 27.0°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#A3302B
RGB	rgb(163, 48, 43)
HSL	hsl(3, 58%, 40%)
HSV	hsv(3, 74%, 64%)
CMYK	cmyk(0%, 70.6%, 73.6%, 36.1%)
CIE-LAB	lab(37.98, 46.80, 30.36)
CIE-LCH	lch(37.98, 55.79, 32.97°)
OKLab	oklab(48.34% 0.1354 0.0688)
OKLCH	oklch(48.34% 0.152 27)
XYZ	xyz(16.5991, 10.0773, 3.3561)
Luminance	0.1008 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3302B #2B9EA3

analogous

#A32B62 #A3302B #A36C2B

triadic

#A3302B #2BA330 #302BA3

tetradic

#A3302B #62A32B #2B9EA3 #6C2BA3

square

#A3302B #62A32B #2B9EA3 #6C2BA3

split-complementary

#A3302B #2BA36C #2B62A3

monochromatic

#421311 #73221E #A3302B #CC453F #D9746F

Accessibility & contrast

On white

6.97

#A3302B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#A3302B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A3302B

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3302B	#FFFFFF	#000000	##FFFFFF
##A3302B	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514A29

Deuteranopia (green-blind)

#6E6327

Tritanopia (blue-blind)

#B30830

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #a3302b;
/* rgb */ color: rgb(163, 48, 43);
/* oklch */ color: oklch(48.3% 0.152 27.0);

Tailwind

colors: {
  custom: {
    50: '#c67065',
    500: '#a3302b',
    950: '#000000',
  },
}

SCSS

$custom: #a3302b;
$custom-light: #c67065;
$custom-dark: #000000;

JSON

{
  "hex": "#a3302b",
  "rgb": {
    "r": 163,
    "g": 48,
    "b": 43
  },
  "hsl": {
    "h": 2.5,
    "s": 58.252,
    "l": 40.392
  },
  "oklch": {
    "l": 0.48335,
    "c": 0.15189,
    "h": 27
  },
  "luminance": 0.10075
}

Semantic roles & 50–950 ramp

primary

#A3302B

secondary

#6ABDC0

accent

#DBE146

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140805

muted

#837B7A

Preview Lab

Preview with #A3302B

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

Preview Lab → · Contrast checker → · Palette generator →