#459AB6

CSS

:root {
  --enchanted-well: #459ab6;
  --enchanted-well-rgb: 69 154 182;
  --enchanted-well-oklch: oklch(0.645 0.091 222.7);
}

.element {
  color: var(--enchanted-well);
  background-color: hsl(195 45% 49%);
  border-color: oklch(0.645 0.091 222.7);
}

Tailwind CSS v4

@theme {
  --color-enchanted-well: #459ab6;
  --color-enchanted-well-50: #dafbff;
  --color-enchanted-well-100: #c8efff;
  --color-enchanted-well-200: #abddf2;
  --color-enchanted-well-300: #83c2db;
  --color-enchanted-well-400: #5cabc6;
  --color-enchanted-well-500: #2f93b2;
  --color-enchanted-well-600: #2a7c96;
  --color-enchanted-well-700: #226478;
  --color-enchanted-well-800: #154958;
  --color-enchanted-well-900: #0d333e;
  --color-enchanted-well-950: #011f27;
}

SCSS

$enchanted-well: #459ab6;
$enchanted-well-rgb: 69, 154, 182;
$enchanted-well-light: mix(#fff, $enchanted-well, 20%);
$enchanted-well-dark: mix(#000, $enchanted-well, 20%);

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