#4C94B0

CSS

:root {
  --enchanted-well: #4c94b0;
  --enchanted-well-rgb: 76 148 176;
  --enchanted-well-oklch: oklch(0.631 0.083 225.9);
}

.element {
  color: var(--enchanted-well);
  background-color: hsl(197 40% 49%);
  border-color: oklch(0.631 0.083 225.9);
}

Tailwind CSS v4

@theme {
  --color-enchanted-well: #4c94b0;
  --color-enchanted-well-50: #defbff;
  --color-enchanted-well-100: #cceefe;
  --color-enchanted-well-200: #b0dcf1;
  --color-enchanted-well-300: #8ac0d9;
  --color-enchanted-well-400: #66a9c4;
  --color-enchanted-well-500: #3f91b0;
  --color-enchanted-well-600: #377b95;
  --color-enchanted-well-700: #2c6277;
  --color-enchanted-well-800: #1d4958;
  --color-enchanted-well-900: #13323d;
  --color-enchanted-well-950: #051e27;
}

SCSS

$enchanted-well: #4c94b0;
$enchanted-well-rgb: 76, 148, 176;
$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);
}