#C73D3B#C73D3B

#C73D3B is a mid, vivid red. Relative luminance 0.158; OKLCH L 56.2% C 0.175 H 25.5°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#C73D3B
RGB	rgb(199, 61, 59)
HSL	hsl(1, 56%, 51%)
HSV	hsv(1, 70%, 78%)
CMYK	cmyk(0%, 69.3%, 70.4%, 22%)
CIE-LAB	lab(46.71, 54.33, 32.80)
CIE-LCH	lch(46.71, 63.46, 31.12°)
OKLab	oklab(56.15% 0.1581 0.0754)
OKLCH	oklch(56.15% 0.175 25.5)
XYZ	xyz(26.0142, 15.7992, 5.8166)
Luminance	0.1580 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C73D3B #3BC5C7

analogous

#C73B7F #C73D3B #C7833B

triadic

#C73D3B #3BC73D #3D3BC7

tetradic

#C73D3B #7FC73B #3BC5C7 #833BC7

square

#C73D3B #7FC73B #3BC5C7 #833BC7

split-complementary

#C73D3B #3BC783 #3B7FC7

monochromatic

#691F1E #992D2C #C73D3B #D56C6B #E29B9A

Accessibility & contrast

On white

5.05

#C73D3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#C73D3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C73D3B

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C73D3B	#FFFFFF	#000000	##FFFFFF
##C73D3B	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645C39

Deuteranopia (green-blind)

#867A37

Tritanopia (blue-blind)

#DB103E

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #c73d3b;
/* rgb */ color: rgb(199, 61, 59);
/* oklch */ color: oklch(56.2% 0.175 25.5);

Tailwind

colors: {
  custom: {
    50: '#e07b71',
    500: '#c73d3b',
    950: '#000000',
  },
}

SCSS

$custom: #c73d3b;
$custom-light: #e07b71;
$custom-dark: #000000;

JSON

{
  "hex": "#c73d3b",
  "rgb": {
    "r": 199,
    "g": 61,
    "b": 59
  },
  "hsl": {
    "h": 0.857,
    "s": 55.556,
    "l": 50.588
  },
  "oklch": {
    "l": 0.56153,
    "c": 0.17516,
    "h": 25.5
  },
  "luminance": 0.15795
}

Semantic roles & 50–950 ramp

primary

#C73D3B

secondary

#90CDCE

accent

#DDDF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C73D3B

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

Preview Lab → · Contrast checker → · Palette generator →