#CC3738#CC3738

#CC3738 is a mid, vivid red. Relative luminance 0.159; OKLCH L 56.4% C 0.186 H 25.2°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX#CC3738
RGBrgb(204, 55, 56)
HSLhsl(360, 59%, 51%)
HSVhsv(360, 73%, 80%)
CMYKcmyk(0%, 73%, 72.5%, 20%)
CIE-LABlab(46.79, 57.98, 34.86)
CIE-LCHlch(46.79, 67.65, 31.02°)
OKLaboklab(56.37% 0.1684 0.0791)
OKLCHoklch(56.37% 0.186 25.2)
XYZxyz(26.9849, 15.8594, 5.3809)
Luminance0.1585 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#CC3738 #37CCCB
analogous
#CC3782 #CC3738 #CC8037
triadic
#CC3738 #38CC37 #3738CC
tetradic
#CC3738 #82CC37 #37CCCB #8037CC
square
#CC3738 #82CC37 #37CCCB #8037CC
split-complementary
#CC3738 #37CC80 #3782CC
monochromatic
#6D1C1C #9E2829 #CC3738 #D86869 #E59999

Accessibility & contrast

On white

5.03
#CC3738 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.17
#CC3738 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CC3738
5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##CC3738#FFFFFF#000000##FFFFFF
##CC37381.005.034.175.03
#FFFFFF5.031.0021.001.00
#0000004.1721.001.0021.00
##FFFFFF5.031.0021.001.00

Color blindness preview

Protanopia (red-blind)
#635A36
Deuteranopia (green-blind)
#887B33
Tritanopia (blue-blind)
#E00039
Achromatopsia (no color)
#6F6F6F

Design tokens & code

CSS
--color: #cc3738;
/* rgb */ color: rgb(204, 55, 56);
/* oklch */ color: oklch(56.4% 0.186 25.2);
Tailwind
colors: {
  custom: {
    50: '#e4796f',
    500: '#cc3738',
    950: '#000000',
  },
}
SCSS
$custom: #cc3738;
$custom-light: #e4796f;
$custom-dark: #000000;
JSON
{
  "hex": "#cc3738",
  "rgb": {
    "r": 204,
    "g": 55,
    "b": 56
  },
  "hsl": {
    "h": 359.597,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.56367,
    "c": 0.18603,
    "h": 25.2
  },
  "luminance": 0.15855
}

Semantic roles & 50–950 ramp

primary
#CC3738
secondary
#8ED0D0
accent
#E3E145
background
#FFF7F6
surface
#FFEEEC
border
#D7C9C7
text
#170A07
muted
#857C7A

Preview Lab

Preview with #CC3738

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

Preview Lab → · Contrast checker → · Palette generator →

#CC3738 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva