#EC004A

CSS

:root {
  --che-guevara-red: #ec004a;
  --che-guevara-red-rgb: 236 0 74;
  --che-guevara-red-oklch: oklch(0.599 0.24 16.6);
}

.element {
  color: var(--che-guevara-red);
  background-color: hsl(341 100% 46%);
  border-color: oklch(0.599 0.24 16.6);
}

Tailwind CSS v4

@theme {
  --color-che-guevara-red: #ec004a;
  --color-che-guevara-red-50: #ffdada;
  --color-che-guevara-red-100: #ffc7c9;
  --color-che-guevara-red-200: #ffa8ac;
  --color-che-guevara-red-300: #ff7c86;
  --color-che-guevara-red-400: #ff4c6b;
  --color-che-guevara-red-500: #fd004a;
  --color-che-guevara-red-600: #d6003f;
  --color-che-guevara-red-700: #ac0032;
  --color-che-guevara-red-800: #810027;
  --color-che-guevara-red-900: #5b001a;
  --color-che-guevara-red-950: #3d000b;
}

SCSS

$che-guevara-red: #ec004a;
$che-guevara-red-rgb: 236, 0, 74;
$che-guevara-red-light: mix(#fff, $che-guevara-red, 20%);
$che-guevara-red-dark: mix(#000, $che-guevara-red, 20%);

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