#C43731#C43731

#C43731 is a mid, vivid red. Relative luminance 0.147; OKLCH L 54.9% C 0.179 H 27.3°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#C43731
RGB	rgb(196, 55, 49)
HSL	hsl(2, 60%, 48%)
HSV	hsv(2, 75%, 77%)
CMYK	cmyk(0%, 71.9%, 75%, 23.1%)
CIE-LAB	lab(45.21, 55.18, 36.69)
CIE-LCH	lch(45.21, 66.26, 33.62°)
OKLab	oklab(54.89% 0.159 0.082)
OKLCH	oklch(54.89% 0.179 27.3)
XYZ	xyz(24.6883, 14.6937, 4.4413)
Luminance	0.1469 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43731 #31BEC4

analogous

#C43174 #C43731 #C48031

triadic

#C43731 #31C437 #3731C4

tetradic

#C43731 #74C431 #31BEC4 #8031C4

square

#C43731 #74C431 #31BEC4 #8031C4

split-complementary

#C43731 #31C480 #3174C4

monochromatic

#621C19 #932925 #C43731 #D6615C #E2908D

Accessibility & contrast

On white

5.33

#C43731 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#C43731 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43731

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43731	#FFFFFF	#000000	##FFFFFF
##C43731	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60572F

Deuteranopia (green-blind)

#83762C

Tritanopia (blue-blind)

#D80037

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c43731;
/* rgb */ color: rgb(196, 55, 49);
/* oklch */ color: oklch(54.9% 0.179 27.3);

Tailwind

colors: {
  custom: {
    50: '#df786a',
    500: '#c43731',
    950: '#000000',
  },
}

SCSS

$custom: #c43731;
$custom-light: #df786a;
$custom-dark: #000000;

JSON

{
  "hex": "#c43731",
  "rgb": {
    "r": 196,
    "g": 55,
    "b": 49
  },
  "hsl": {
    "h": 2.449,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.54892,
    "c": 0.17892,
    "h": 27.3
  },
  "luminance": 0.1469
}

Semantic roles & 50–950 ramp

primary

#C43731

secondary

#84CACD

accent

#DDE345

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C43731

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

Preview Lab → · Contrast checker → · Palette generator →