Buoyant Blue

CSS

:root {
  --buoyant-blue: #84addb;
  --buoyant-blue-rgb: 132 173 219;
  --buoyant-blue-oklch: oklch(0.735 0.081 251.8);
}

.element {
  color: var(--buoyant-blue);
  background-color: hsl(212 55% 69%);
  border-color: oklch(0.735 0.081 251.8);
}

Tailwind CSS v4

@theme {
  --color-buoyant-blue: #84addb;
  --color-buoyant-blue-50: #e6f7ff;
  --color-buoyant-blue-100: #d6eaff;
  --color-buoyant-blue-200: #bdd7f7;
  --color-buoyant-blue-300: #9bbae0;
  --color-buoyant-blue-400: #7ba2cd;
  --color-buoyant-blue-500: #5e8aba;
  --color-buoyant-blue-600: #50749d;
  --color-buoyant-blue-700: #3f5d7e;
  --color-buoyant-blue-800: #2c445d;
  --color-buoyant-blue-900: #1e2f41;
  --color-buoyant-blue-950: #0e1c2a;
}

SCSS

$buoyant-blue: #84addb;
$buoyant-blue-rgb: 132, 173, 219;
$buoyant-blue-light: mix(#fff, $buoyant-blue, 20%);
$buoyant-blue-dark: mix(#000, $buoyant-blue, 20%);

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