#C42F2B#C42F2B

#C42F2B is a mid, vivid red. Relative luminance 0.139; OKLCH L 54.1% C 0.186 H 27.2°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#C42F2B
RGB	rgb(196, 47, 43)
HSL	hsl(2, 64%, 47%)
HSV	hsv(2, 78%, 77%)
CMYK	cmyk(0%, 76%, 78.1%, 23.1%)
CIE-LAB	lab(44.16, 57.70, 38.93)
CIE-LCH	lch(44.16, 69.60, 34.01°)
OKLab	oklab(54.08% 0.1657 0.0852)
OKLCH	oklch(54.08% 0.186 27.2)
XYZ	xyz(24.2204, 13.9470, 3.7018)
Luminance	0.1394 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C42F2B #2BC0C4

analogous

#C42B73 #C42F2B #C47C2B

triadic

#C42F2B #2BC42F #2F2BC4

tetradic

#C42F2B #73C42B #2BC0C4 #7C2BC4

square

#C42F2B #73C42B #2BC0C4 #7C2BC4

split-complementary

#C42F2B #2BC47C #2B73C4

monochromatic

#601715 #922320 #C42F2B #D95653 #E48885

Accessibility & contrast

On white

5.54

#C42F2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#C42F2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C42F2B

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C42F2B	#FFFFFF	#000000	##FFFFFF
##C42F2B	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5429

Deuteranopia (green-blind)

#827425

Tritanopia (blue-blind)

#D80030

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #c42f2b;
/* rgb */ color: rgb(196, 47, 43);
/* oklch */ color: oklch(54.1% 0.186 27.2);

Tailwind

colors: {
  custom: {
    50: '#df7465',
    500: '#c42f2b',
    950: '#000000',
  },
}

SCSS

$custom: #c42f2b;
$custom-light: #df7465;
$custom-dark: #000000;

JSON

{
  "hex": "#c42f2b",
  "rgb": {
    "r": 196,
    "g": 47,
    "b": 43
  },
  "hsl": {
    "h": 1.569,
    "s": 64.017,
    "l": 46.863
  },
  "oklch": {
    "l": 0.54084,
    "c": 0.18634,
    "h": 27.2
  },
  "luminance": 0.13943
}

Semantic roles & 50–950 ramp

primary

#C42F2B

secondary

#7DCBCE

accent

#E3E741

background

#FFF7F6

surface

#FEEDEB

border

#D6C8C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C42F2B

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

Preview Lab → · Contrast checker → · Palette generator →