#A3304B#A3304B

#A3304B is a mid, vivid red. Relative luminance 0.104; OKLCH L 49.0% C 0.151 H 10.9°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#A3304B
RGB	rgb(163, 48, 75)
HSL	hsl(346, 55%, 41%)
HSV	hsv(346, 71%, 64%)
CMYK	cmyk(0%, 70.6%, 54%, 36.1%)
CIE-LAB	lab(38.57, 48.87, 11.21)
CIE-LCH	lch(38.57, 50.14, 12.92°)
OKLab	oklab(48.96% 0.148 0.0284)
OKLCH	oklch(48.96% 0.151 10.9)
XYZ	xyz(17.4328, 10.4108, 7.7468)
Luminance	0.1041 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3304B #30A388

analogous

#A33085 #A3304B #A34F30

triadic

#A3304B #4BA330 #304BA3

tetradic

#A3304B #85A330 #30A388 #4F30A3

square

#A3304B #85A330 #30A388 #4F30A3

split-complementary

#A3304B #30A34F #3085A3

monochromatic

#44141F #742235 #A3304B #C94766 #D7778D

Accessibility & contrast

On white

6.81

#A3304B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#A3304B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A3304B

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3304B	#FFFFFF	#000000	##FFFFFF
##A3304B	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4C4B

Deuteranopia (green-blind)

#6A6348

Tritanopia (blue-blind)

#B2183B

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a3304b;
/* rgb */ color: rgb(163, 48, 75);
/* oklch */ color: oklch(49.0% 0.151 10.9);

Tailwind

colors: {
  custom: {
    50: '#c4717d',
    500: '#a3304b',
    950: '#000000',
  },
}

SCSS

$custom: #a3304b;
$custom-light: #c4717d;
$custom-dark: #000000;

JSON

{
  "hex": "#a3304b",
  "rgb": {
    "r": 163,
    "g": 48,
    "b": 75
  },
  "hsl": {
    "h": 345.913,
    "s": 54.502,
    "l": 41.373
  },
  "oklch": {
    "l": 0.48964,
    "c": 0.15075,
    "h": 10.9
  },
  "luminance": 0.10408
}

Semantic roles & 50–950 ramp

primary

#A3304B

secondary

#70BFAC

accent

#DEBB4A

background

#FCF7F7

surface

#F9EDEE

border

#D2C8C9

text

#140809

muted

#827B7B

Preview Lab

Preview with #A3304B

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

Preview Lab → · Contrast checker → · Palette generator →