#CA3738#CA3738

#CA3738 is a mid, vivid red. Relative luminance 0.156; OKLCH L 56.0% C 0.184 H 25.1°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX#CA3738
RGBrgb(202, 55, 56)
HSLhsl(360, 58%, 50%)
HSVhsv(360, 73%, 79%)
CMYKcmyk(0%, 72.8%, 72.3%, 20.8%)
CIE-LABlab(46.42, 57.36, 34.34)
CIE-LCHlch(46.42, 66.85, 30.91°)
OKLaboklab(56.02% 0.1667 0.078)
OKLCHoklch(56.02% 0.184 25.1)
XYZxyz(26.4401, 15.5785, 5.3554)
Luminance0.1557 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#CA3738 #37CAC9
analogous
#CA3781 #CA3738 #CA7F37
triadic
#CA3738 #38CA37 #3738CA
tetradic
#CA3738 #81CA37 #37CAC9 #7F37CA
square
#CA3738 #81CA37 #37CAC9 #7F37CA
split-complementary
#CA3738 #37CA7F #3781CA
monochromatic
#6A1C1D #9B292A #CA3738 #D76768 #E49898

Accessibility & contrast

On white

5.10
#CA3738 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.11
#CA3738 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3738
5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##CA3738#FFFFFF#000000##FFFFFF
##CA37381.005.104.115.10
#FFFFFF5.101.0021.001.00
#0000004.1121.001.0021.00
##FFFFFF5.101.0021.001.00

Color blindness preview

Protanopia (red-blind)
#625A36
Deuteranopia (green-blind)
#877A33
Tritanopia (blue-blind)
#DE0039
Achromatopsia (no color)
#6E6E6E

Design tokens & code

CSS
--color: #ca3738;
/* rgb */ color: rgb(202, 55, 56);
/* oklch */ color: oklch(56.0% 0.184 25.1);
Tailwind
colors: {
  custom: {
    50: '#e3786f',
    500: '#ca3738',
    950: '#000000',
  },
}
SCSS
$custom: #ca3738;
$custom-light: #e3786f;
$custom-dark: #000000;
JSON
{
  "hex": "#ca3738",
  "rgb": {
    "r": 202,
    "g": 55,
    "b": 56
  },
  "hsl": {
    "h": 359.592,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56022,
    "c": 0.18404,
    "h": 25.1
  },
  "luminance": 0.15574
}

Semantic roles & 50–950 ramp

primary
#CA3738
secondary
#8ECFCF
accent
#E1E046
background
#FFF7F6
surface
#FEEEEC
border
#D6C9C7
text
#170A07
muted
#857C7A

Preview Lab

Preview with #CA3738

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

Preview Lab → · Contrast checker → · Palette generator →

#CA3738 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva