#CA373A#CA373A

#CA373A is a mid, vivid red. Relative luminance 0.156; OKLCH L 56.0% C 0.184 H 24.4°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#CA373A
RGB	rgb(202, 55, 58)
HSL	hsl(359, 58%, 50%)
HSV	hsv(359, 73%, 79%)
CMYK	cmyk(0%, 72.8%, 71.3%, 20.8%)
CIE-LAB	lab(46.44, 57.45, 33.20)
CIE-LCH	lch(46.44, 66.35, 30.03°)
OKLab	oklab(56.05% 0.1674 0.076)
OKLCH	oklch(56.05% 0.184 24.4)
XYZ	xyz(26.4900, 15.5984, 5.6181)
Luminance	0.1559 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA373A #37CAC7

analogous

#CA3783 #CA373A #CA7E37

triadic

#CA373A #3ACA37 #373ACA

tetradic

#CA373A #83CA37 #37CAC7 #7E37CA

square

#CA373A #83CA37 #37CAC7 #7E37CA

split-complementary

#CA373A #37CA7E #3783CA

monochromatic

#6A1C1E #9B292B #CA373A #D7676A #E49899

Accessibility & contrast

On white

5.10

#CA373A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#CA373A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA373A

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA373A	#FFFFFF	#000000	##FFFFFF
##CA373A	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625A39

Deuteranopia (green-blind)

#867A35

Tritanopia (blue-blind)

#DE003A

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #ca373a;
/* rgb */ color: rgb(202, 55, 58);
/* oklch */ color: oklch(56.0% 0.184 24.4);

Tailwind

colors: {
  custom: {
    50: '#e37970',
    500: '#ca373a',
    950: '#000000',
  },
}

SCSS

$custom: #ca373a;
$custom-light: #e37970;
$custom-dark: #000000;

JSON

{
  "hex": "#ca373a",
  "rgb": {
    "r": 202,
    "g": 55,
    "b": 58
  },
  "hsl": {
    "h": 358.776,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.5605,
    "c": 0.18381,
    "h": 24.4
  },
  "luminance": 0.15594
}

Semantic roles & 50–950 ramp

primary

#CA373A

secondary

#8ECFCE

accent

#E1DE46

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CA373A

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

Preview Lab → · Contrast checker → · Palette generator →