#C1303A#C1303A

#C1303A is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.8% C 0.181 H 22.3°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#C1303A
RGB	rgb(193, 48, 58)
HSL	hsl(356, 60%, 47%)
HSV	hsv(356, 75%, 76%)
CMYK	cmyk(0%, 75.1%, 69.9%, 24.3%)
CIE-LAB	lab(43.89, 57.08, 29.75)
CIE-LCH	lch(43.89, 64.37, 27.53°)
OKLab	oklab(53.84% 0.1674 0.0688)
OKLCH	oklch(53.84% 0.181 22.3)
XYZ	xyz(23.8157, 13.7605, 5.4042)
Luminance	0.1376 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C1303A #30C1B7

analogous

#C13083 #C1303A #C16F30

triadic

#C1303A #3AC130 #303AC1

tetradic

#C1303A #83C130 #30C1B7 #6F30C1

square

#C1303A #83C130 #30C1B7 #6F30C1

split-complementary

#C1303A #30C16F #3083C1

monochromatic

#5F181D #90242B #C1303A #D65961 #E28A90

Accessibility & contrast

On white

5.60

#C1303A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#C1303A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C1303A

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C1303A	#FFFFFF	#000000	##FFFFFF
##C1303A	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5439

Deuteranopia (green-blind)

#7F7335

Tritanopia (blue-blind)

#D40035

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #c1303a;
/* rgb */ color: rgb(193, 48, 58);
/* oklch */ color: oklch(53.8% 0.181 22.3);

Tailwind

colors: {
  custom: {
    50: '#dc7470',
    500: '#c1303a',
    950: '#000000',
  },
}

SCSS

$custom: #c1303a;
$custom-light: #dc7470;
$custom-dark: #000000;

JSON

{
  "hex": "#c1303a",
  "rgb": {
    "r": 193,
    "g": 48,
    "b": 58
  },
  "hsl": {
    "h": 355.862,
    "s": 60.166,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53841,
    "c": 0.18096,
    "h": 22.3
  },
  "luminance": 0.13757
}

Semantic roles & 50–950 ramp

primary

#C1303A

secondary

#81CCC7

accent

#E3D844

background

#FEF7F6

surface

#FDEDEC

border

#D5C8C7

text

#170907

muted

#857B7A

Preview Lab

Preview with #C1303A

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

Preview Lab → · Contrast checker → · Palette generator →