Blue Ballet

CSS

:root {
  --blue-ballet: #576b6b;
  --blue-ballet-rgb: 87 107 107;
  --blue-ballet-oklch: oklch(0.511 0.024 196.4);
}

.element {
  color: var(--blue-ballet);
  background-color: hsl(180 10% 38%);
  border-color: oklch(0.511 0.024 196.4);
}

Tailwind CSS v4

@theme {
  --color-blue-ballet: #576b6b;
  --color-blue-ballet-50: #eef7f8;
  --color-blue-ballet-100: #dfeaeb;
  --color-blue-ballet-200: #c9d8d8;
  --color-blue-ballet-300: #aabbbc;
  --color-blue-ballet-400: #8fa3a3;
  --color-blue-ballet-500: #748b8b;
  --color-blue-ballet-600: #637676;
  --color-blue-ballet-700: #4f5e5e;
  --color-blue-ballet-800: #394545;
  --color-blue-ballet-900: #273030;
  --color-blue-ballet-950: #151c1c;
}

SCSS

$blue-ballet: #576b6b;
$blue-ballet-rgb: 87, 107, 107;
$blue-ballet-light: mix(#fff, $blue-ballet, 20%);
$blue-ballet-dark: mix(#000, $blue-ballet, 20%);

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