#CF4437#CF4437

#CF4437 is a mid, vivid red. Relative luminance 0.177; OKLCH L 58.2% C 0.178 H 29.0°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#CF4437
RGB	rgb(207, 68, 55)
HSL	hsl(5, 61%, 51%)
HSV	hsv(5, 73%, 81%)
CMYK	cmyk(0%, 67.1%, 73.4%, 18.8%)
CIE-LAB	lab(49.11, 54.00, 38.20)
CIE-LCH	lch(49.11, 66.15, 35.28°)
OKLab	oklab(58.19% 0.1553 0.086)
OKLCH	oklch(58.19% 0.178 29)
XYZ	xyz(28.4920, 17.6797, 5.5259)
Luminance	0.1767 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CF4437 #37C2CF

analogous

#CF3776 #CF4437 #CF9037

triadic

#CF4437 #37CF44 #4437CF

tetradic

#CF4437 #76CF37 #37C2CF #9037CF

square

#CF4437 #76CF37 #37C2CF #9037CF

split-complementary

#CF4437 #37CF90 #3776CF

monochromatic

#71221B #A23127 #CF4437 #DB7268 #E7A09A

Accessibility & contrast

On white

4.63

#CF4437 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#CF4437 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #CF4437

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CF4437	#FFFFFF	#000000	##FFFFFF
##CF4437	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B6135

Deuteranopia (green-blind)

#8E8032

Tritanopia (blue-blind)

#E41A42

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #cf4437;
/* rgb */ color: rgb(207, 68, 55);
/* oklch */ color: oklch(58.2% 0.178 29.0);

Tailwind

colors: {
  custom: {
    50: '#e67f6e',
    500: '#cf4437',
    950: '#000000',
  },
}

SCSS

$custom: #cf4437;
$custom-light: #e67f6e;
$custom-dark: #000000;

JSON

{
  "hex": "#cf4437",
  "rgb": {
    "r": 207,
    "g": 68,
    "b": 55
  },
  "hsl": {
    "h": 5.132,
    "s": 61.29,
    "l": 51.373
  },
  "oklch": {
    "l": 0.58194,
    "c": 0.17751,
    "h": 29
  },
  "luminance": 0.17675
}

Semantic roles & 50–950 ramp

primary

#CF4437

secondary

#8FCDD2

accent

#D7E443

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#170B07

muted

#857C7A

Preview Lab

Preview with #CF4437

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

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