#C73A3A#C73A3A

#C73A3A is a mid, vivid red. Relative luminance 0.155; OKLCH L 55.8% C 0.178 H 25.0°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#C73A3A
RGB	rgb(199, 58, 58)
HSL	hsl(0, 56%, 50%)
HSV	hsv(0, 71%, 78%)
CMYK	cmyk(0%, 70.9%, 70.9%, 22%)
CIE-LAB	lab(46.28, 55.42, 32.87)
CIE-LCH	lch(46.28, 64.44, 30.67°)
OKLab	oklab(55.83% 0.1613 0.0754)
OKLCH	oklch(55.83% 0.178 25)
XYZ	xyz(25.8328, 15.4776, 5.6294)
Luminance	0.1547 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C73A3A #3AC7C7

analogous

#C73A80 #C73A3A #C7803A

triadic

#C73A3A #3AC73A #3A3AC7

tetradic

#C73A3A #80C73A #3AC7C7 #803AC7

square

#C73A3A #80C73A #3AC7C7 #803AC7

split-complementary

#C73A3A #3AC780 #3A80C7

monochromatic

#691E1E #982B2B #C73A3A #D56A6A #E29999

Accessibility & contrast

On white

5.13

#C73A3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#C73A3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C73A3A

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C73A3A	#FFFFFF	#000000	##FFFFFF
##C73A3A	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625A39

Deuteranopia (green-blind)

#867935

Tritanopia (blue-blind)

#DB033C

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c73a3a;
/* rgb */ color: rgb(199, 58, 58);
/* oklch */ color: oklch(55.8% 0.178 25.0);

Tailwind

colors: {
  custom: {
    50: '#e07a70',
    500: '#c73a3a',
    950: '#000000',
  },
}

SCSS

$custom: #c73a3a;
$custom-light: #e07a70;
$custom-dark: #000000;

JSON

{
  "hex": "#c73a3a",
  "rgb": {
    "r": 199,
    "g": 58,
    "b": 58
  },
  "hsl": {
    "h": 0,
    "s": 55.731,
    "l": 50.392
  },
  "oklch": {
    "l": 0.55828,
    "c": 0.17808,
    "h": 25
  },
  "luminance": 0.15474
}

Semantic roles & 50–950 ramp

primary

#C73A3A

secondary

#8FCECE

accent

#DFDF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C73A3A

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

Preview Lab → · Contrast checker → · Palette generator →