#CF4237#CF4237

#CF4237 is a mid, vivid red. Relative luminance 0.174; OKLCH L 58.0% C 0.179 H 28.4°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#CF4237
RGB	rgb(207, 66, 55)
HSL	hsl(4, 61%, 51%)
HSV	hsv(4, 73%, 81%)
CMYK	cmyk(0%, 68.1%, 73.4%, 18.8%)
CIE-LAB	lab(48.81, 54.80, 37.87)
CIE-LCH	lch(48.81, 66.62, 34.65°)
OKLab	oklab(57.97% 0.1578 0.0853)
OKLCH	oklch(57.97% 0.179 28.4)
XYZ	xyz(28.3731, 17.4419, 5.4863)
Luminance	0.1744 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CF4237 #37C4CF

analogous

#CF3778 #CF4237 #CF8E37

triadic

#CF4237 #37CF42 #4237CF

tetradic

#CF4237 #78CF37 #37C4CF #8E37CF

square

#CF4237 #78CF37 #37C4CF #8E37CF

split-complementary

#CF4237 #37CF8E #3778CF

monochromatic

#71211B #A23027 #CF4237 #DB7168 #E79F9A

Accessibility & contrast

On white

4.68

#CF4237 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#CF4237 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CF4237

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CF4237	#FFFFFF	#000000	##FFFFFF
##CF4237	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A6035

Deuteranopia (green-blind)

#8D7F32

Tritanopia (blue-blind)

#E41541

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #cf4237;
/* rgb */ color: rgb(207, 66, 55);
/* oklch */ color: oklch(58.0% 0.179 28.4);

Tailwind

colors: {
  custom: {
    50: '#e67e6e',
    500: '#cf4237',
    950: '#000000',
  },
}

SCSS

$custom: #cf4237;
$custom-light: #e67e6e;
$custom-dark: #000000;

JSON

{
  "hex": "#cf4237",
  "rgb": {
    "r": 207,
    "g": 66,
    "b": 55
  },
  "hsl": {
    "h": 4.342,
    "s": 61.29,
    "l": 51.373
  },
  "oklch": {
    "l": 0.57974,
    "c": 0.17936,
    "h": 28.4
  },
  "luminance": 0.17438
}

Semantic roles & 50–950 ramp

primary

#CF4237

secondary

#8FCED2

accent

#D9E443

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#170B07

muted

#857C7A

Preview Lab

Preview with #CF4237

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

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