#C0303F#C0303F

#C0303F is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.7% C 0.180 H 20.4°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#C0303F
RGB	rgb(192, 48, 63)
HSL	hsl(354, 60%, 47%)
HSV	hsv(354, 75%, 75%)
CMYK	cmyk(0%, 75%, 67.2%, 24.7%)
CIE-LAB	lab(43.77, 57.04, 26.55)
CIE-LCH	lch(43.77, 62.91, 24.96°)
OKLab	oklab(53.75% 0.1684 0.0625)
OKLCH	oklch(53.75% 0.18 20.4)
XYZ	xyz(23.6950, 13.6828, 6.0950)
Luminance	0.1368 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C0303F #30C0B1

analogous

#C03087 #C0303F #C06930

triadic

#C0303F #3FC030 #303FC0

tetradic

#C0303F #87C030 #30C0B1 #6930C0

square

#C0303F #87C030 #30C0B1 #6930C0

split-complementary

#C0303F #30C069 #3087C0

monochromatic

#5E181F #8F242F #C0303F #D55865 #E18992

Accessibility & contrast

On white

5.62

#C0303F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#C0303F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C0303F

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C0303F	#FFFFFF	#000000	##FFFFFF
##C0303F	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A543E

Deuteranopia (green-blind)

#7E733B

Tritanopia (blue-blind)

#D30037

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #c0303f;
/* rgb */ color: rgb(192, 48, 63);
/* oklch */ color: oklch(53.7% 0.180 20.4);

Tailwind

colors: {
  custom: {
    50: '#db7474',
    500: '#c0303f',
    950: '#000000',
  },
}

SCSS

$custom: #c0303f;
$custom-light: #db7474;
$custom-dark: #000000;

JSON

{
  "hex": "#c0303f",
  "rgb": {
    "r": 192,
    "g": 48,
    "b": 63
  },
  "hsl": {
    "h": 353.75,
    "s": 60,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53748,
    "c": 0.17964,
    "h": 20.4
  },
  "luminance": 0.13679
}

Semantic roles & 50–950 ramp

primary

#C0303F

secondary

#80CBC4

accent

#E3D345

background

#FEF7F7

surface

#FDEDED

border

#D5C8C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #C0303F

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

Preview Lab → · Contrast checker → · Palette generator →