#C43C37#C43C37

#C43C37 is a mid, vivid red. Relative luminance 0.152; OKLCH L 55.5% C 0.174 H 26.6°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#C43C37
RGB	rgb(196, 60, 55)
HSL	hsl(2, 56%, 49%)
HSV	hsv(2, 72%, 77%)
CMYK	cmyk(0%, 69.4%, 71.9%, 23.1%)
CIE-LAB	lab(45.97, 53.56, 34.11)
CIE-LCH	lch(45.97, 63.50, 32.50°)
OKLab	oklab(55.48% 0.1552 0.0777)
OKLCH	oklch(55.48% 0.174 26.6)
XYZ	xyz(25.0732, 15.2470, 5.2364)
Luminance	0.1524 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43C37 #37BFC4

analogous

#C43778 #C43C37 #C48337

triadic

#C43C37 #37C43C #3C37C4

tetradic

#C43C37 #78C437 #37BFC4 #8337C4

square

#C43C37 #78C437 #37BFC4 #8337C4

split-complementary

#C43C37 #37C483 #3778C4

monochromatic

#641F1C #942D2A #C43C37 #D46865 #E19794

Accessibility & contrast

On white

5.19

#C43C37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#C43C37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43C37

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43C37	#FFFFFF	#000000	##FFFFFF
##C43C37	1.00	5.19	4.05	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635A35

Deuteranopia (green-blind)

#857832

Tritanopia (blue-blind)

#D70E3C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c43c37;
/* rgb */ color: rgb(196, 60, 55);
/* oklch */ color: oklch(55.5% 0.174 26.6);

Tailwind

colors: {
  custom: {
    50: '#de7a6e',
    500: '#c43c37',
    950: '#000000',
  },
}

SCSS

$custom: #c43c37;
$custom-light: #de7a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#c43c37",
  "rgb": {
    "r": 196,
    "g": 60,
    "b": 55
  },
  "hsl": {
    "h": 2.128,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55483,
    "c": 0.17354,
    "h": 26.6
  },
  "luminance": 0.15243
}

Semantic roles & 50–950 ramp

primary

#C43C37

secondary

#8BCACC

accent

#DADF48

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43C37

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

Preview Lab → · Contrast checker → · Palette generator →