#C43537#C43537

#C43537 is a mid, vivid red. Relative luminance 0.146; OKLCH L 54.8% C 0.180 H 24.7°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#C43537
RGB	rgb(196, 53, 55)
HSL	hsl(359, 57%, 49%)
HSV	hsv(359, 73%, 77%)
CMYK	cmyk(0%, 73%, 71.9%, 23.1%)
CIE-LAB	lab(45.03, 56.15, 33.02)
CIE-LCH	lch(45.03, 65.14, 30.46°)
OKLab	oklab(54.78% 0.1634 0.0753)
OKLCH	oklch(54.78% 0.18 24.7)
XYZ	xyz(24.7304, 14.5616, 5.1222)
Luminance	0.1456 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C43537 #35C4C2

analogous

#C4357F #C43537 #C47B35

triadic

#C43537 #37C435 #3537C4

tetradic

#C43537 #7FC435 #35C4C2 #7B35C4

square

#C43537 #7FC435 #35C4C2 #7B35C4

split-complementary

#C43537 #35C47B #357FC4

monochromatic

#641B1C #942829 #C43537 #D46263 #E19293

Accessibility & contrast

On white

5.37

#C43537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#C43537 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C43537

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C43537	#FFFFFF	#000000	##FFFFFF
##C43537	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5736

Deuteranopia (green-blind)

#827632

Tritanopia (blue-blind)

#D80037

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c43537;
/* rgb */ color: rgb(196, 53, 55);
/* oklch */ color: oklch(54.8% 0.180 24.7);

Tailwind

colors: {
  custom: {
    50: '#de776e',
    500: '#c43537',
    950: '#000000',
  },
}

SCSS

$custom: #c43537;
$custom-light: #de776e;
$custom-dark: #000000;

JSON

{
  "hex": "#c43537",
  "rgb": {
    "r": 196,
    "g": 53,
    "b": 55
  },
  "hsl": {
    "h": 359.161,
    "s": 57.43,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54779,
    "c": 0.17989,
    "h": 24.7
  },
  "luminance": 0.14558
}

Semantic roles & 50–950 ramp

primary

#C43537

secondary

#88CCCB

accent

#E1DF47

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170907

muted

#857B7A

Preview Lab

Preview with #C43537

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

Preview Lab → · Contrast checker → · Palette generator →