#C42B37#C42B37

#C42B37 is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.9% C 0.188 H 22.6°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#C42B37
RGB	rgb(196, 43, 55)
HSL	hsl(355, 64%, 47%)
HSV	hsv(355, 78%, 77%)
CMYK	cmyk(0%, 78.1%, 71.9%, 23.1%)
CIE-LAB	lab(43.86, 59.41, 31.66)
CIE-LCH	lch(43.86, 67.32, 28.05°)
OKLab	oklab(53.91% 0.1737 0.0723)
OKLCH	oklch(53.91% 0.188 22.6)
XYZ	xyz(24.3212, 13.7432, 4.9858)
Luminance	0.1374 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C42B37 #2BC4B8

analogous

#C42B84 #C42B37 #C46C2B

triadic

#C42B37 #37C42B #2B37C4

tetradic

#C42B37 #84C42B #2BC4B8 #6C2BC4

square

#C42B37 #84C42B #2BC4B8 #6C2BC4

split-complementary

#C42B37 #2BC46C #2B84C4

monochromatic

#60151B #922029 #C42B37 #D9535D #E4858D

Accessibility & contrast

On white

5.60

#C42B37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#C42B37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C42B37

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C42B37	#FFFFFF	#000000	##FFFFFF
##C42B37	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5336

Deuteranopia (green-blind)

#807332

Tritanopia (blue-blind)

#D80031

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #c42b37;
/* rgb */ color: rgb(196, 43, 55);
/* oklch */ color: oklch(53.9% 0.188 22.6);

Tailwind

colors: {
  custom: {
    50: '#df736e',
    500: '#c42b37',
    950: '#000000',
  },
}

SCSS

$custom: #c42b37;
$custom-light: #df736e;
$custom-dark: #000000;

JSON

{
  "hex": "#c42b37",
  "rgb": {
    "r": 196,
    "g": 43,
    "b": 55
  },
  "hsl": {
    "h": 355.294,
    "s": 64.017,
    "l": 46.863
  },
  "oklch": {
    "l": 0.53912,
    "c": 0.18816,
    "h": 22.6
  },
  "luminance": 0.13739
}

Semantic roles & 50–950 ramp

primary

#C42B37

secondary

#7DCEC7

accent

#E7DA41

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#170907

muted

#857B7A

Preview Lab

Preview with #C42B37

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

Preview Lab → · Contrast checker → · Palette generator →