#A0243A#A0243A

#A0243A is a mid, vivid red. Relative luminance 0.090; OKLCH L 46.9% C 0.159 H 16.4°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#A0243A
RGB	rgb(160, 36, 58)
HSL	hsl(349, 63%, 38%)
HSV	hsv(349, 78%, 63%)
CMYK	cmyk(0%, 77.5%, 63.8%, 37.3%)
CIE-LAB	lab(36.07, 51.04, 18.58)
CIE-LCH	lch(36.07, 54.31, 20.00°)
OKLab	oklab(46.88% 0.1525 0.0449)
OKLCH	oklch(46.88% 0.159 16.4)
XYZ	xyz(15.8935, 9.0432, 4.9108)
Luminance	0.0904 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A0243A #24A08A

analogous

#A02478 #A0243A #A04C24

triadic

#A0243A #3AA024 #243AA0

tetradic

#A0243A #78A024 #24A08A #4C24A0

square

#A0243A #78A024 #24A08A #4C24A0

split-complementary

#A0243A #24A04C #2478A0

monochromatic

#3C0E16 #6E1928 #A0243A #D1314D #DC6378

Accessibility & contrast

On white

7.48

#A0243A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#A0243A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A0243A

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A0243A	#FFFFFF	#000000	##FFFFFF
##A0243A	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47443A

Deuteranopia (green-blind)

#675E37

Tritanopia (blue-blind)

#B0002D

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #a0243a;
/* rgb */ color: rgb(160, 36, 58);
/* oklch */ color: oklch(46.9% 0.159 16.4);

Tailwind

colors: {
  custom: {
    50: '#c36a6f',
    500: '#a0243a',
    950: '#000000',
  },
}

SCSS

$custom: #a0243a;
$custom-light: #c36a6f;
$custom-dark: #000000;

JSON

{
  "hex": "#a0243a",
  "rgb": {
    "r": 160,
    "g": 36,
    "b": 58
  },
  "hsl": {
    "h": 349.355,
    "s": 63.265,
    "l": 38.431
  },
  "oklch": {
    "l": 0.46883,
    "c": 0.15895,
    "h": 16.4
  },
  "luminance": 0.09041
}

Semantic roles & 50–950 ramp

primary

#A0243A

secondary

#5FC1B0

accent

#E6C941

background

#FCF6F6

surface

#F9ECEC

border

#D2C7C7

text

#140707

muted

#827A7A

Preview Lab

Preview with #A0243A

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

Preview Lab → · Contrast checker → · Palette generator →