#CF3939#CF3939

#CF3939 is a mid, vivid red. Relative luminance 0.165; OKLCH L 57.1% C 0.187 H 25.4°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#CF3939
RGB	rgb(207, 57, 57)
HSL	hsl(0, 61%, 52%)
HSV	hsv(0, 72%, 81%)
CMYK	cmyk(0%, 72.5%, 72.5%, 18.8%)
CIE-LAB	lab(47.61, 58.25, 35.38)
CIE-LCH	lch(47.61, 68.15, 31.27°)
OKLab	oklab(57.09% 0.1691 0.0803)
OKLCH	oklch(57.09% 0.187 25.4)
XYZ	xyz(27.9369, 16.4913, 5.5822)
Luminance	0.1649 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CF3939 #39CFCF

analogous

#CF3984 #CF3939 #CF8439

triadic

#CF3939 #39CF39 #3939CF

tetradic

#CF3939 #84CF39 #39CFCF #8439CF

square

#CF3939 #84CF39 #39CFCF #8439CF

split-complementary

#CF3939 #39CF84 #3984CF

monochromatic

#721C1C #A32828 #CF3939 #DB6A6A #E79C9C

Accessibility & contrast

On white

4.89

#CF3939 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#CF3939 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CF3939

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CF3939	#FFFFFF	#000000	##FFFFFF
##CF3939	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655C37

Deuteranopia (green-blind)

#8A7D34

Tritanopia (blue-blind)

#E4003B

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #cf3939;
/* rgb */ color: rgb(207, 57, 57);
/* oklch */ color: oklch(57.1% 0.187 25.4);

Tailwind

colors: {
  custom: {
    50: '#e67a70',
    500: '#cf3939',
    950: '#000000',
  },
}

SCSS

$custom: #cf3939;
$custom-light: #e67a70;
$custom-dark: #000000;

JSON

{
  "hex": "#cf3939",
  "rgb": {
    "r": 207,
    "g": 57,
    "b": 57
  },
  "hsl": {
    "h": 0,
    "s": 60.976,
    "l": 51.765
  },
  "oklch": {
    "l": 0.57086,
    "c": 0.18716,
    "h": 25.4
  },
  "luminance": 0.16487
}

Semantic roles & 50–950 ramp

primary

#CF3939

secondary

#91D3D3

accent

#E4E444

background

#FFF7F6

surface

#FFEEEC

border

#D7C9C7

text

#180A07

muted

#867C7A

Preview Lab

Preview with #CF3939

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

Preview Lab → · Contrast checker → · Palette generator →