Blue Shutters

CSS

:root {
  --blue-shutters: #93bde7;
  --blue-shutters-rgb: 147 189 231;
  --blue-shutters-oklch: oklch(0.783 0.075 248.8);
}

.element {
  color: var(--blue-shutters);
  background-color: hsl(210 64% 74%);
  border-color: oklch(0.783 0.075 248.8);
}

Tailwind CSS v4

@theme {
  --color-blue-shutters: #93bde7;
  --color-blue-shutters-50: #e6f7ff;
  --color-blue-shutters-100: #d6eaff;
  --color-blue-shutters-200: #bdd7f4;
  --color-blue-shutters-300: #9bbbdd;
  --color-blue-shutters-400: #7ca3c9;
  --color-blue-shutters-500: #5e8ab6;
  --color-blue-shutters-600: #50759a;
  --color-blue-shutters-700: #405e7b;
  --color-blue-shutters-800: #2c455b;
  --color-blue-shutters-900: #1e3040;
  --color-blue-shutters-950: #0e1c29;
}

SCSS

$blue-shutters: #93bde7;
$blue-shutters-rgb: 147, 189, 231;
$blue-shutters-light: mix(#fff, $blue-shutters, 20%);
$blue-shutters-dark: mix(#000, $blue-shutters, 20%);

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