#C63729#C63729

#C63729 is a mid, vivid red. Relative luminance 0.149; OKLCH L 55.1% C 0.182 H 29.6°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#C63729
RGB	rgb(198, 55, 41)
HSL	hsl(5, 66%, 47%)
HSV	hsv(5, 79%, 78%)
CMYK	cmyk(0%, 72.2%, 79.3%, 22.4%)
CIE-LAB	lab(45.50, 55.52, 41.52)
CIE-LCH	lch(45.50, 69.33, 36.79°)
OKLab	oklab(55.15% 0.1583 0.0901)
OKLCH	oklch(55.15% 0.182 29.6)
XYZ	xyz(25.0581, 14.9021, 3.6544)
Luminance	0.1490 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63729 #29B8C6

analogous

#C6296A #C63729 #C68529

triadic

#C63729 #29C637 #3729C6

tetradic

#C63729 #6AC629 #29B8C6 #8529C6

square

#C63729 #6AC629 #29B8C6 #8529C6

split-complementary

#C63729 #29C685 #296AC6

monochromatic

#611B14 #93291F #C63729 #DB5D51 #E68D84

Accessibility & contrast

On white

5.28

#C63729 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#C63729 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63729

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63729	#FFFFFF	#000000	##FFFFFF
##C63729	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625826

Deuteranopia (green-blind)

#857723

Tritanopia (blue-blind)

#DA0035

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c63729;
/* rgb */ color: rgb(198, 55, 41);
/* oklch */ color: oklch(55.1% 0.182 29.6);

Tailwind

colors: {
  custom: {
    50: '#e17864',
    500: '#c63729',
    950: '#000000',
  },
}

SCSS

$custom: #c63729;
$custom-light: #e17864;
$custom-dark: #000000;

JSON

{
  "hex": "#c63729",
  "rgb": {
    "r": 198,
    "g": 55,
    "b": 41
  },
  "hsl": {
    "h": 5.35,
    "s": 65.69,
    "l": 46.863
  },
  "oklch": {
    "l": 0.55148,
    "c": 0.18211,
    "h": 29.6
  },
  "luminance": 0.14898
}

Semantic roles & 50–950 ramp

primary

#C63729

secondary

#7CC7CF

accent

#DAE93F

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170905

muted

#857B7A

Preview Lab

Preview with #C63729

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

Preview Lab → · Contrast checker → · Palette generator →