#CA183F#CA183F

#CA183F is a mid, highly saturated red. Relative luminance 0.136; OKLCH L 54.0% C 0.205 H 17.8°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#CA183F
RGB	rgb(202, 24, 63)
HSL	hsl(347, 79%, 44%)
HSV	hsv(347, 88%, 79%)
CMYK	cmyk(0%, 88.1%, 68.8%, 20.8%)
CIE-LAB	lab(43.61, 65.88, 26.78)
CIE-LCH	lch(43.61, 71.11, 22.12°)
OKLab	oklab(53.98% 0.1954 0.0626)
OKLCH	oklch(53.98% 0.205 17.8)
XYZ	xyz(25.5840, 13.5728, 5.9744)
Luminance	0.1357 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA183F #18CAA3

analogous

#CA1898 #CA183F #CA4A18

triadic

#CA183F #3FCA18 #183FCA

tetradic

#CA183F #98CA18 #18CAA3 #4A18CA

square

#CA183F #98CA18 #18CAA3 #4A18CA

split-complementary

#CA183F #18CA4A #1898CA

monochromatic

#5D0B1D #93122E #CA183F #E7385E #EE6F8A

Accessibility & contrast

On white

5.65

#CA183F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#CA183F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA183F

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA183F	#FFFFFF	#000000	##FFFFFF
##CA183F	1.00	5.65	3.71	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54503F

Deuteranopia (green-blind)

#7F7439

Tritanopia (blue-blind)

#DE002B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #ca183f;
/* rgb */ color: rgb(202, 24, 63);
/* oklch */ color: oklch(54.0% 0.205 17.8);

Tailwind

colors: {
  custom: {
    50: '#e36e73',
    500: '#ca183f',
    950: '#000000',
  },
}

SCSS

$custom: #ca183f;
$custom-light: #e36e73;
$custom-dark: #000000;

JSON

{
  "hex": "#ca183f",
  "rgb": {
    "r": 202,
    "g": 24,
    "b": 63
  },
  "hsl": {
    "h": 346.854,
    "s": 78.761,
    "l": 44.314
  },
  "oklch": {
    "l": 0.53977,
    "c": 0.20521,
    "h": 17.8
  },
  "luminance": 0.13569
}

Semantic roles & 50–950 ramp

primary

#CA183F

secondary

#6AD4BD

accent

#F5CB33

background

#FFF7F7

surface

#FEEDED

border

#D6C8C8

text

#170808

muted

#857B7B

Preview Lab

Preview with #CA183F

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

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