#C43743#C43743

#C43743 is a mid, vivid red. Relative luminance 0.149; OKLCH L 55.2% C 0.177 H 20.7°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#C43743
RGB	rgb(196, 55, 67)
HSL	hsl(355, 56%, 49%)
HSV	hsv(355, 72%, 77%)
CMYK	cmyk(0%, 71.9%, 65.8%, 23.1%)
CIE-LAB	lab(45.47, 56.05, 26.41)
CIE-LCH	lch(45.47, 61.96, 25.23°)
OKLab	oklab(55.16% 0.1656 0.0625)
OKLCH	oklch(55.16% 0.177 20.7)
XYZ	xyz(25.1469, 14.8771, 6.8565)
Luminance	0.1487 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43743 #37C4B8

analogous

#C43789 #C43743 #C47237

triadic

#C43743 #43C437 #3743C4

tetradic

#C43743 #89C437 #37C4B8 #7237C4

square

#C43743 #89C437 #37C4B8 #7237C4

split-complementary

#C43743 #37C472 #3789C4

monochromatic

#641C22 #942A33 #C43743 #D4656E #E1949B

Accessibility & contrast

On white

5.28

#C43743 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#C43743 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43743

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43743	#FFFFFF	#000000	##FFFFFF
##C43743	1.00	5.28	3.97	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5942

Deuteranopia (green-blind)

#82773F

Tritanopia (blue-blind)

#D7023D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c43743;
/* rgb */ color: rgb(196, 55, 67);
/* oklch */ color: oklch(55.2% 0.177 20.7);

Tailwind

colors: {
  custom: {
    50: '#de7877',
    500: '#c43743',
    950: '#000000',
  },
}

SCSS

$custom: #c43743;
$custom-light: #de7877;
$custom-dark: #000000;

JSON

{
  "hex": "#c43743",
  "rgb": {
    "r": 196,
    "g": 55,
    "b": 67
  },
  "hsl": {
    "h": 354.894,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55162,
    "c": 0.17699,
    "h": 20.7
  },
  "luminance": 0.14873
}

Semantic roles & 50–950 ramp

primary

#C43743

secondary

#8BCCC7

accent

#DFD348

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C43743

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

Preview Lab → · Contrast checker → · Palette generator →