#C63A3C#C63A3C

#C63A3C is a mid, vivid red. Relative luminance 0.154; OKLCH L 55.7% C 0.177 H 24.3°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#C63A3C
RGB	rgb(198, 58, 60)
HSL	hsl(359, 55%, 50%)
HSV	hsv(359, 71%, 78%)
CMYK	cmyk(0%, 70.7%, 69.7%, 22.4%)
CIE-LAB	lab(46.13, 55.20, 31.47)
CIE-LCH	lch(46.13, 63.54, 29.69°)
OKLab	oklab(55.69% 0.1612 0.0727)
OKLCH	oklch(55.69% 0.177 24.3)
XYZ	xyz(25.6202, 15.3619, 5.8902)
Luminance	0.1536 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63A3C #3AC6C4

analogous

#C63A82 #C63A3C #C67E3A

triadic

#C63A3C #3CC63A #3A3CC6

tetradic

#C63A3C #82C63A #3AC6C4 #7E3AC6

square

#C63A3C #82C63A #3AC6C4 #7E3AC6

split-complementary

#C63A3C #3AC67E #3A82C6

monochromatic

#681E1F #972C2D #C63A3C #D4696B #E1999A

Accessibility & contrast

On white

5.16

#C63A3C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#C63A3C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63A3C

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63A3C	#FFFFFF	#000000	##FFFFFF
##C63A3C	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625A3B

Deuteranopia (green-blind)

#857838

Tritanopia (blue-blind)

#DA063C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c63a3c;
/* rgb */ color: rgb(198, 58, 60);
/* oklch */ color: oklch(55.7% 0.177 24.3);

Tailwind

colors: {
  custom: {
    50: '#df7972',
    500: '#c63a3c',
    950: '#000000',
  },
}

SCSS

$custom: #c63a3c;
$custom-light: #df7972;
$custom-dark: #000000;

JSON

{
  "hex": "#c63a3c",
  "rgb": {
    "r": 198,
    "g": 58,
    "b": 60
  },
  "hsl": {
    "h": 359.143,
    "s": 55.118,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55688,
    "c": 0.17682,
    "h": 24.3
  },
  "luminance": 0.15358
}

Semantic roles & 50–950 ramp

primary

#C63A3C

secondary

#8FCDCC

accent

#DEDC49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C63A3C

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

Preview Lab → · Contrast checker → · Palette generator →