#C10643

CSS

:root {
  --red-jalapeno: #c10643;
  --red-jalapeno-rgb: 193 6 67;
  --red-jalapeno-oklch: oklch(0.518 0.205 14);
}

.element {
  color: var(--red-jalapeno);
  background-color: hsl(340 94% 39%);
  border-color: oklch(0.518 0.205 14);
}

Tailwind CSS v4

@theme {
  --color-red-jalapeno: #c10643;
  --color-red-jalapeno-50: #ffdee1;
  --color-red-jalapeno-100: #ffccd1;
  --color-red-jalapeno-200: #ffafb6;
  --color-red-jalapeno-300: #ff8793;
  --color-red-jalapeno-400: #ff5f79;
  --color-red-jalapeno-500: #ee2b5c;
  --color-red-jalapeno-600: #c9284e;
  --color-red-jalapeno-700: #a2213e;
  --color-red-jalapeno-800: #79152f;
  --color-red-jalapeno-900: #550e20;
  --color-red-jalapeno-950: #39000f;
}

SCSS

$red-jalapeno: #c10643;
$red-jalapeno-rgb: 193, 6, 67;
$red-jalapeno-light: mix(#fff, $red-jalapeno, 20%);
$red-jalapeno-dark: mix(#000, $red-jalapeno, 20%);

.element {
  color: $red-jalapeno;
  box-shadow: 0 0 0 2px rgba($red-jalapeno, 0.35);
}