#C43F36#C43F36

#C43F36 is a mid, vivid red. Relative luminance 0.156; OKLCH L 55.8% C 0.171 H 27.8°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#C43F36
RGB	rgb(196, 63, 54)
HSL	hsl(4, 57%, 49%)
HSV	hsv(4, 72%, 77%)
CMYK	cmyk(0%, 67.9%, 72.4%, 23.1%)
CIE-LAB	lab(46.39, 52.32, 35.17)
CIE-LCH	lch(46.39, 63.05, 33.91°)
OKLab	oklab(55.79% 0.1511 0.0798)
OKLCH	oklch(55.79% 0.171 27.8)
XYZ	xyz(25.2111, 15.5608, 5.1653)
Luminance	0.1556 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43F36 #36BBC4

analogous

#C43674 #C43F36 #C48636

triadic

#C43F36 #36C43F #3F36C4

tetradic

#C43F36 #74C436 #36BBC4 #8636C4

square

#C43F36 #74C436 #36BBC4 #8636C4

split-complementary

#C43F36 #36C486 #3674C4

monochromatic

#64201C #943029 #C43F36 #D46A63 #E19893

Accessibility & contrast

On white

5.11

#C43F36 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#C43F36 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43F36

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43F36	#FFFFFF	#000000	##FFFFFF
##C43F36	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655C34

Deuteranopia (green-blind)

#867932

Tritanopia (blue-blind)

#D7173E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c43f36;
/* rgb */ color: rgb(196, 63, 54);
/* oklch */ color: oklch(55.8% 0.171 27.8);

Tailwind

colors: {
  custom: {
    50: '#de7c6d',
    500: '#c43f36',
    950: '#000000',
  },
}

SCSS

$custom: #c43f36;
$custom-light: #de7c6d;
$custom-dark: #000000;

JSON

{
  "hex": "#c43f36",
  "rgb": {
    "r": 196,
    "g": 63,
    "b": 54
  },
  "hsl": {
    "h": 3.803,
    "s": 56.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.55795,
    "c": 0.17086,
    "h": 27.8
  },
  "luminance": 0.15557
}

Semantic roles & 50–950 ramp

primary

#C43F36

secondary

#89C8CC

accent

#D6E048

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C43F36

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

Preview Lab → · Contrast checker → · Palette generator →