#CC4037#CC4037

#CC4037 is a mid, vivid red. Relative luminance 0.168; OKLCH L 57.3% C 0.178 H 27.8°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX#CC4037
RGBrgb(204, 64, 55)
HSLhsl(4, 59%, 51%)
HSVhsv(4, 73%, 80%)
CMYKcmyk(0%, 68.6%, 73%, 20%)
CIE-LABlab(47.99, 54.61, 36.80)
CIE-LCHlch(47.99, 65.85, 33.98°)
OKLaboklab(57.26% 0.1575 0.0831)
OKLCHoklch(57.26% 0.178 27.8)
XYZxyz(27.4279, 16.7841, 5.4091)
Luminance0.1678 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#CC4037 #37C3CC
analogous
#CC3778 #CC4037 #CC8A37
triadic
#CC4037 #37CC40 #4037CC
tetradic
#CC4037 #78CC37 #37C3CC #8A37CC
square
#CC4037 #78CC37 #37C3CC #8A37CC
split-complementary
#CC4037 #37CC8A #3778CC
monochromatic
#6D211C #9E2F28 #CC4037 #D86F68 #E59D99

Accessibility & contrast

On white

4.82
#CC4037 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.36
#CC4037 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CC4037
4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##CC4037#FFFFFF#000000##FFFFFF
##CC40371.004.824.364.82
#FFFFFF4.821.0021.001.00
#0000004.3621.001.0021.00
##FFFFFF4.821.0021.001.00

Color blindness preview

Protanopia (red-blind)
#685F35
Deuteranopia (green-blind)
#8B7D32
Tritanopia (blue-blind)
#E0123F
Achromatopsia (no color)
#727272

Design tokens & code

CSS
--color: #cc4037;
/* rgb */ color: rgb(204, 64, 55);
/* oklch */ color: oklch(57.3% 0.178 27.8);
Tailwind
colors: {
  custom: {
    50: '#e47d6e',
    500: '#cc4037',
    950: '#000000',
  },
}
SCSS
$custom: #cc4037;
$custom-light: #e47d6e;
$custom-dark: #000000;
JSON
{
  "hex": "#cc4037",
  "rgb": {
    "r": 204,
    "g": 64,
    "b": 55
  },
  "hsl": {
    "h": 3.624,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.57257,
    "c": 0.17811,
    "h": 27.8
  },
  "luminance": 0.1678
}

Semantic roles & 50–950 ramp

primary
#CC4037
secondary
#8ECCD0
accent
#D9E345
background
#FFF8F6
surface
#FEEFEC
border
#D6CAC7
text
#170A07
muted
#857C7A

Preview Lab

Preview with #CC4037

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

Preview Lab → · Contrast checker → · Palette generator →

#CC4037 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva