#C5303F#C5303F

#C5303F is a mid, vivid red. Relative luminance 0.143; OKLCH L 54.6% C 0.185 H 20.8°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#C5303F
RGB	rgb(197, 48, 63)
HSL	hsl(354, 61%, 48%)
HSV	hsv(354, 76%, 77%)
CMYK	cmyk(0%, 75.6%, 68%, 22.7%)
CIE-LAB	lab(44.73, 58.53, 27.94)
CIE-LCH	lch(44.73, 64.86, 25.52°)
OKLab	oklab(54.63% 0.1726 0.0654)
OKLCH	oklch(54.63% 0.185 20.8)
XYZ	xyz(24.9829, 14.3469, 6.1554)
Luminance	0.1434 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5303F #30C5B6

analogous

#C53089 #C5303F #C56C30

triadic

#C5303F #3FC530 #303FC5

tetradic

#C5303F #89C530 #30C5B6 #6C30C5

square

#C5303F #89C530 #30C5B6 #6C30C5

split-complementary

#C5303F #30C56C #3089C5

monochromatic

#631820 #94242F #C5303F #D75B68 #E38C95

Accessibility & contrast

On white

5.43

#C5303F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#C5303F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C5303F

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5303F	#FFFFFF	#000000	##FFFFFF
##C5303F	1.00	5.43	3.87	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C563E

Deuteranopia (green-blind)

#81753A

Tritanopia (blue-blind)

#D80037

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c5303f;
/* rgb */ color: rgb(197, 48, 63);
/* oklch */ color: oklch(54.6% 0.185 20.8);

Tailwind

colors: {
  custom: {
    50: '#df7574',
    500: '#c5303f',
    950: '#000000',
  },
}

SCSS

$custom: #c5303f;
$custom-light: #df7574;
$custom-dark: #000000;

JSON

{
  "hex": "#c5303f",
  "rgb": {
    "r": 197,
    "g": 48,
    "b": 63
  },
  "hsl": {
    "h": 353.96,
    "s": 60.816,
    "l": 48.039
  },
  "oklch": {
    "l": 0.54626,
    "c": 0.18452,
    "h": 20.8
  },
  "luminance": 0.14343
}

Semantic roles & 50–950 ramp

primary

#C5303F

secondary

#84CDC6

accent

#E4D444

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170908

muted

#857B7B

Preview Lab

Preview with #C5303F

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

Preview Lab → · Contrast checker → · Palette generator →