#A4303A#A4303A

#A4303A is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.8% C 0.151 H 20.1°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#A4303A
RGB	rgb(164, 48, 58)
HSL	hsl(355, 55%, 42%)
HSV	hsv(355, 71%, 64%)
CMYK	cmyk(0%, 70.7%, 64.6%, 35.7%)
CIE-LAB	lab(38.40, 47.96, 21.74)
CIE-LCH	lch(38.40, 52.65, 24.39°)
OKLab	oklab(48.76% 0.1421 0.052)
OKLCH	oklch(48.76% 0.151 20.1)
XYZ	xyz(17.1323, 10.3144, 5.0909)
Luminance	0.1031 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4303A #30A49A

analogous

#A43074 #A4303A #A46030

triadic

#A4303A #3AA430 #303AA4

tetradic

#A4303A #74A430 #30A49A #6030A4

square

#A4303A #74A430 #30A49A #6030A4

split-complementary

#A4303A #30A460 #3074A4

monochromatic

#451419 #752229 #A4303A #C94853 #D7777F

Accessibility & contrast

On white

6.86

#A4303A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#A4303A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A4303A

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4303A	#FFFFFF	#000000	##FFFFFF
##A4303A	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4B3A

Deuteranopia (green-blind)

#6D6337

Tritanopia (blue-blind)

#B40F35

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a4303a;
/* rgb */ color: rgb(164, 48, 58);
/* oklch */ color: oklch(48.8% 0.151 20.1);

Tailwind

colors: {
  custom: {
    50: '#c67070',
    500: '#a4303a',
    950: '#000000',
  },
}

SCSS

$custom: #a4303a;
$custom-light: #c67070;
$custom-dark: #000000;

JSON

{
  "hex": "#a4303a",
  "rgb": {
    "r": 164,
    "g": 48,
    "b": 58
  },
  "hsl": {
    "h": 354.828,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.48758,
    "c": 0.15131,
    "h": 20.1
  },
  "luminance": 0.10312
}

Semantic roles & 50–950 ramp

primary

#A4303A

secondary

#70BFB9

accent

#DED14A

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140807

muted

#837B7A

Preview Lab

Preview with #A4303A

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

Preview Lab → · Contrast checker → · Palette generator →