#C43742#C43742

#C43742 is a mid, vivid red. Relative luminance 0.149; OKLCH L 55.1% C 0.177 H 21.1°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#C43742
RGB	rgb(196, 55, 66)
HSL	hsl(355, 56%, 49%)
HSV	hsv(355, 72%, 77%)
CMYK	cmyk(0%, 71.9%, 66.3%, 23.1%)
CIE-LAB	lab(45.45, 55.99, 26.99)
CIE-LCH	lch(45.45, 62.16, 25.73°)
OKLab	oklab(55.15% 0.1652 0.0637)
OKLCH	oklch(55.15% 0.177 21.1)
XYZ	xyz(25.1172, 14.8652, 6.6999)
Luminance	0.1486 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43742 #37C4B9

analogous

#C43789 #C43742 #C47337

triadic

#C43742 #42C437 #3742C4

tetradic

#C43742 #89C437 #37C4B9 #7337C4

square

#C43742 #89C437 #37C4B9 #7337C4

split-complementary

#C43742 #37C473 #3789C4

monochromatic

#641C22 #942A32 #C43742 #D4656D #E1949A

Accessibility & contrast

On white

5.29

#C43742 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#C43742 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43742

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43742	#FFFFFF	#000000	##FFFFFF
##C43742	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5841

Deuteranopia (green-blind)

#82773E

Tritanopia (blue-blind)

#D7013C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c43742;
/* rgb */ color: rgb(196, 55, 66);
/* oklch */ color: oklch(55.1% 0.177 21.1);

Tailwind

colors: {
  custom: {
    50: '#de7876',
    500: '#c43742',
    950: '#000000',
  },
}

SCSS

$custom: #c43742;
$custom-light: #de7876;
$custom-dark: #000000;

JSON

{
  "hex": "#c43742",
  "rgb": {
    "r": 196,
    "g": 55,
    "b": 66
  },
  "hsl": {
    "h": 355.319,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55145,
    "c": 0.17705,
    "h": 21.1
  },
  "luminance": 0.14861
}

Semantic roles & 50–950 ramp

primary

#C43742

secondary

#8BCCC7

accent

#DFD448

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C43742

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

Preview Lab → · Contrast checker → · Palette generator →