#CF3B37#CF3B37

#CF3B37 is a mid, vivid red. Relative luminance 0.167; OKLCH L 57.3% C 0.186 H 26.5°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#CF3B37
RGB	rgb(207, 59, 55)
HSL	hsl(2, 61%, 51%)
HSV	hsv(2, 73%, 81%)
CMYK	cmyk(0%, 71.5%, 73.4%, 18.8%)
CIE-LAB	lab(47.85, 57.45, 36.79)
CIE-LCH	lch(47.85, 68.22, 32.63°)
OKLab	oklab(57.25% 0.1661 0.0829)
OKLCH	oklch(57.25% 0.186 26.5)
XYZ	xyz(27.9889, 16.6734, 5.3582)
Luminance	0.1667 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CF3B37 #37CBCF

analogous

#CF377F #CF3B37 #CF8737

triadic

#CF3B37 #37CF3B #3B37CF

tetradic

#CF3B37 #7FCF37 #37CBCF #8737CF

square

#CF3B37 #7FCF37 #37CBCF #8737CF

split-complementary

#CF3B37 #37CF87 #377FCF

monochromatic

#711D1B #A22A27 #CF3B37 #DB6B68 #E79C9A

Accessibility & contrast

On white

4.85

#CF3B37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#CF3B37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CF3B37

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CF3B37	#FFFFFF	#000000	##FFFFFF
##CF3B37	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665D35

Deuteranopia (green-blind)

#8B7D32

Tritanopia (blue-blind)

#E4003C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #cf3b37;
/* rgb */ color: rgb(207, 59, 55);
/* oklch */ color: oklch(57.3% 0.186 26.5);

Tailwind

colors: {
  custom: {
    50: '#e67b6e',
    500: '#cf3b37',
    950: '#000000',
  },
}

SCSS

$custom: #cf3b37;
$custom-light: #e67b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#cf3b37",
  "rgb": {
    "r": 207,
    "g": 59,
    "b": 55
  },
  "hsl": {
    "h": 1.579,
    "s": 61.29,
    "l": 51.373
  },
  "oklch": {
    "l": 0.57252,
    "c": 0.18567,
    "h": 26.5
  },
  "luminance": 0.16669
}

Semantic roles & 50–950 ramp

primary

#CF3B37

secondary

#8FD1D2

accent

#E0E443

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #CF3B37

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

Preview Lab → · Contrast checker → · Palette generator →