#C43740#C43740

#C43740 is a mid, vivid red. Relative luminance 0.148; OKLCH L 55.1% C 0.177 H 21.9°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX#C43740
RGBrgb(196, 55, 64)
HSLhsl(356, 56%, 49%)
HSVhsv(356, 72%, 77%)
CMYKcmyk(0%, 71.9%, 67.3%, 23.1%)
CIE-LABlab(45.42, 55.88, 28.15)
CIE-LCHlch(45.42, 62.57, 26.74°)
OKLaboklab(55.11% 0.1644 0.066)
OKLCHoklch(55.11% 0.177 21.9)
XYZxyz(25.0593, 14.8420, 6.3948)
Luminance0.1484 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#C43740 #37C4BB
analogous
#C43787 #C43740 #C47537
triadic
#C43740 #40C437 #3740C4
tetradic
#C43740 #87C437 #37C4BB #7537C4
square
#C43740 #87C437 #37C4BB #7537C4
split-complementary
#C43740 #37C475 #3787C4
monochromatic
#641C21 #942A30 #C43740 #D4656C #E19499

Accessibility & contrast

On white

5.29
#C43740 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.97
#C43740 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43740
5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##C43740#FFFFFF#000000##FFFFFF
##C437401.005.293.975.29
#FFFFFF5.291.0021.001.00
#0000003.9721.001.0021.00
##FFFFFF5.291.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5F583F
Deuteranopia (green-blind)
#82763C
Tritanopia (blue-blind)
#D7003C
Achromatopsia (no color)
#6B6B6B

Design tokens & code

CSS
--color: #c43740;
/* rgb */ color: rgb(196, 55, 64);
/* oklch */ color: oklch(55.1% 0.177 21.9);
Tailwind
colors: {
  custom: {
    50: '#de7874',
    500: '#c43740',
    950: '#000000',
  },
}
SCSS
$custom: #c43740;
$custom-light: #de7874;
$custom-dark: #000000;
JSON
{
  "hex": "#c43740",
  "rgb": {
    "r": 196,
    "g": 55,
    "b": 64
  },
  "hsl": {
    "h": 356.17,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55111,
    "c": 0.1772,
    "h": 21.9
  },
  "luminance": 0.14838
}

Semantic roles & 50–950 ramp

primary
#C43740
secondary
#8BCCC8
accent
#DFD648
background
#FEF7F7
surface
#FDEEED
border
#D5C9C8
text
#170A08
muted
#857C7B

Preview Lab

Preview with #C43740

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

Preview Lab → · Contrast checker → · Palette generator →

#C43740 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva