#A1303A#A1303A

#A1303A is a mid, vivid red. Relative luminance 0.100; OKLCH L 48.2% C 0.148 H 19.8°. Best body text is #FFFFFF at 7.00:1 contrast (WCAG AA passes).

Color values

HEX	#A1303A
RGB	rgb(161, 48, 58)
HSL	hsl(355, 54%, 41%)
HSV	hsv(355, 70%, 63%)
CMYK	cmyk(0%, 70.2%, 64%, 36.9%)
CIE-LAB	lab(37.84, 46.97, 20.91)
CIE-LCH	lch(37.84, 51.41, 24.00°)
OKLab	oklab(48.24% 0.1393 0.0502)
OKLCH	oklch(48.24% 0.148 19.8)
XYZ	xyz(16.5203, 9.9988, 5.0622)
Luminance	0.1000 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1303A #30A197

analogous

#A13072 #A1303A #A15E30

triadic

#A1303A #3AA130 #303AA1

tetradic

#A1303A #72A130 #30A197 #5E30A1

square

#A1303A #72A130 #30A197 #5E30A1

split-complementary

#A1303A #30A15E #3072A1

monochromatic

#431418 #722229 #A1303A #C84652 #D6757E

Accessibility & contrast

On white

7.00

#A1303A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#A1303A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A1303A

7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1303A	#FFFFFF	#000000	##FFFFFF
##A1303A	1.00	7.00	3.00	7.00
#FFFFFF	7.00	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4A3A

Deuteranopia (green-blind)

#6B6237

Tritanopia (blue-blind)

#B11135

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #a1303a;
/* rgb */ color: rgb(161, 48, 58);
/* oklch */ color: oklch(48.2% 0.148 19.8);

Tailwind

colors: {
  custom: {
    50: '#c37070',
    500: '#a1303a',
    950: '#000000',
  },
}

SCSS

$custom: #a1303a;
$custom-light: #c37070;
$custom-dark: #000000;

JSON

{
  "hex": "#a1303a",
  "rgb": {
    "r": 161,
    "g": 48,
    "b": 58
  },
  "hsl": {
    "h": 354.69,
    "s": 54.067,
    "l": 40.98
  },
  "oklch": {
    "l": 0.48236,
    "c": 0.1481,
    "h": 19.8
  },
  "luminance": 0.09996
}

Semantic roles & 50–950 ramp

primary

#A1303A

secondary

#6FBEB7

accent

#DDD04A

background

#FCF7F6

surface

#F9EDEC

border

#D2C8C7

text

#140807

muted

#827B7A

Preview Lab

Preview with #A1303A

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

Preview Lab → · Contrast checker → · Palette generator →