#C42E3B#C42E3B

#C42E3B is a mid, vivid red. Relative luminance 0.140; OKLCH L 54.2% C 0.185 H 21.8°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#C42E3B
RGB	rgb(196, 46, 59)
HSL	hsl(355, 62%, 47%)
HSV	hsv(355, 77%, 77%)
CMYK	cmyk(0%, 76.5%, 69.9%, 23.1%)
CIE-LAB	lab(44.25, 58.67, 29.72)
CIE-LCH	lch(44.25, 65.77, 26.86°)
OKLab	oklab(54.22% 0.1723 0.0688)
OKLCH	oklch(54.22% 0.185 21.8)
XYZ	xyz(24.5341, 14.0093, 5.5491)
Luminance	0.1401 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C42E3B #2EC4B7

analogous

#C42E86 #C42E3B #C46C2E

triadic

#C42E3B #3BC42E #2E3BC4

tetradic

#C42E3B #86C42E #2EC4B7 #6C2EC4

square

#C42E3B #86C42E #2EC4B7 #6C2EC4

split-complementary

#C42E3B #2EC46C #2E86C4

monochromatic

#61171D #92222C #C42E3B #D85863 #E38991

Accessibility & contrast

On white

5.52

#C42E3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#C42E3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C42E3B

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C42E3B	#FFFFFF	#000000	##FFFFFF
##C42E3B	1.00	5.52	3.80	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B543A

Deuteranopia (green-blind)

#807436

Tritanopia (blue-blind)

#D80034

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #c42e3b;
/* rgb */ color: rgb(196, 46, 59);
/* oklch */ color: oklch(54.2% 0.185 21.8);

Tailwind

colors: {
  custom: {
    50: '#de7471',
    500: '#c42e3b',
    950: '#000000',
  },
}

SCSS

$custom: #c42e3b;
$custom-light: #de7471;
$custom-dark: #000000;

JSON

{
  "hex": "#c42e3b",
  "rgb": {
    "r": 196,
    "g": 46,
    "b": 59
  },
  "hsl": {
    "h": 354.8,
    "s": 61.983,
    "l": 47.451
  },
  "oklch": {
    "l": 0.54215,
    "c": 0.18548,
    "h": 21.8
  },
  "luminance": 0.14006
}

Semantic roles & 50–950 ramp

primary

#C42E3B

secondary

#81CDC6

accent

#E5D743

background

#FEF7F6

surface

#FDEDEC

border

#D5C8C7

text

#170907

muted

#857B7A

Preview Lab

Preview with #C42E3B

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

Preview Lab → · Contrast checker → · Palette generator →