#CA373F#CA373F

#CA373F is a mid, vivid red. Relative luminance 0.156; OKLCH L 56.1% C 0.183 H 22.6°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#CA373F
RGB	rgb(202, 55, 63)
HSL	hsl(357, 58%, 50%)
HSV	hsv(357, 73%, 79%)
CMYK	cmyk(0%, 72.8%, 68.8%, 20.8%)
CIE-LAB	lab(46.51, 57.69, 30.34)
CIE-LCH	lch(46.51, 65.18, 27.74°)
OKLab	oklab(56.13% 0.1692 0.0705)
OKLCH	oklch(56.13% 0.183 22.6)
XYZ	xyz(26.6234, 15.6518, 6.3209)
Luminance	0.1565 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA373F #37CAC2

analogous

#CA3788 #CA373F #CA7937

triadic

#CA373F #3FCA37 #373FCA

tetradic

#CA373F #88CA37 #37CAC2 #7937CA

square

#CA373F #88CA37 #37CAC2 #7937CA

split-complementary

#CA373F #37CA79 #3788CA

monochromatic

#6A1C20 #9B292F #CA373F #D7676D #E4989C

Accessibility & contrast

On white

5.09

#CA373F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#CA373F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA373F

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA373F	#FFFFFF	#000000	##FFFFFF
##CA373F	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615A3E

Deuteranopia (green-blind)

#867A3A

Tritanopia (blue-blind)

#DE003B

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #ca373f;
/* rgb */ color: rgb(202, 55, 63);
/* oklch */ color: oklch(56.1% 0.183 22.6);

Tailwind

colors: {
  custom: {
    50: '#e27974',
    500: '#ca373f',
    950: '#000000',
  },
}

SCSS

$custom: #ca373f;
$custom-light: #e27974;
$custom-dark: #000000;

JSON

{
  "hex": "#ca373f",
  "rgb": {
    "r": 202,
    "g": 55,
    "b": 63
  },
  "hsl": {
    "h": 356.735,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56126,
    "c": 0.1833,
    "h": 22.6
  },
  "luminance": 0.15648
}

Semantic roles & 50–950 ramp

primary

#CA373F

secondary

#8ECFCC

accent

#E1D946

background

#FFF7F7

surface

#FEEEED

border

#D6C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CA373F

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

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