#C43D37#C43D37

#C43D37 is a mid, vivid red. Relative luminance 0.153; OKLCH L 55.6% C 0.173 H 26.9°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#C43D37
RGB	rgb(196, 61, 55)
HSL	hsl(3, 56%, 49%)
HSV	hsv(3, 72%, 77%)
CMYK	cmyk(0%, 68.9%, 71.9%, 23.1%)
CIE-LAB	lab(46.11, 53.17, 34.28)
CIE-LCH	lch(46.11, 63.26, 32.81°)
OKLab	oklab(55.59% 0.154 0.078)
OKLCH	oklch(55.59% 0.173 26.9)
XYZ	xyz(25.1260, 15.3528, 5.2540)
Luminance	0.1535 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43D37 #37BEC4

analogous

#C43778 #C43D37 #C48437

triadic

#C43D37 #37C43D #3D37C4

tetradic

#C43D37 #78C437 #37BEC4 #8437C4

square

#C43D37 #78C437 #37BEC4 #8437C4

split-complementary

#C43D37 #37C484 #3778C4

monochromatic

#641F1C #942E2A #C43D37 #D46965 #E19894

Accessibility & contrast

On white

5.16

#C43D37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#C43D37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43D37

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43D37	#FFFFFF	#000000	##FFFFFF
##C43D37	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635B35

Deuteranopia (green-blind)

#857832

Tritanopia (blue-blind)

#D7113D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c43d37;
/* rgb */ color: rgb(196, 61, 55);
/* oklch */ color: oklch(55.6% 0.173 26.9);

Tailwind

colors: {
  custom: {
    50: '#de7b6e',
    500: '#c43d37',
    950: '#000000',
  },
}

SCSS

$custom: #c43d37;
$custom-light: #de7b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#c43d37",
  "rgb": {
    "r": 196,
    "g": 61,
    "b": 55
  },
  "hsl": {
    "h": 2.553,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.5559,
    "c": 0.1726,
    "h": 26.9
  },
  "luminance": 0.15349
}

Semantic roles & 50–950 ramp

primary

#C43D37

secondary

#8BC9CC

accent

#D9DF48

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43D37

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

Preview Lab → · Contrast checker → · Palette generator →