#C43631#C43631

#C43631 is a mid, vivid red. Relative luminance 0.146; OKLCH L 54.8% C 0.180 H 27.0°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#C43631
RGB	rgb(196, 54, 49)
HSL	hsl(2, 60%, 48%)
HSV	hsv(2, 75%, 77%)
CMYK	cmyk(0%, 72.4%, 75%, 23.1%)
CIE-LAB	lab(45.08, 55.54, 36.55)
CIE-LCH	lch(45.08, 66.49, 33.35°)
OKLab	oklab(54.79% 0.1602 0.0817)
OKLCH	oklch(54.79% 0.18 27)
XYZ	xyz(24.6413, 14.5996, 4.4257)
Luminance	0.1460 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43631 #31BFC4

analogous

#C43175 #C43631 #C47F31

triadic

#C43631 #31C436 #3631C4

tetradic

#C43631 #75C431 #31BFC4 #7F31C4

square

#C43631 #75C431 #31BFC4 #7F31C4

split-complementary

#C43631 #31C47F #3175C4

monochromatic

#621B19 #932925 #C43631 #D6605C #E2908D

Accessibility & contrast

On white

5.36

#C43631 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#C43631 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43631

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43631	#FFFFFF	#000000	##FFFFFF
##C43631	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60572F

Deuteranopia (green-blind)

#83762C

Tritanopia (blue-blind)

#D80036

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c43631;
/* rgb */ color: rgb(196, 54, 49);
/* oklch */ color: oklch(54.8% 0.180 27.0);

Tailwind

colors: {
  custom: {
    50: '#df776a',
    500: '#c43631',
    950: '#000000',
  },
}

SCSS

$custom: #c43631;
$custom-light: #df776a;
$custom-dark: #000000;

JSON

{
  "hex": "#c43631",
  "rgb": {
    "r": 196,
    "g": 54,
    "b": 49
  },
  "hsl": {
    "h": 2.041,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.54794,
    "c": 0.17979,
    "h": 27
  },
  "luminance": 0.14596
}

Semantic roles & 50–950 ramp

primary

#C43631

secondary

#84CACD

accent

#DEE345

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C43631

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

Preview Lab → · Contrast checker → · Palette generator →