#47A3DC

CSS

:root {
  --high-blue: #47a3dc;
  --high-blue-rgb: 71 163 220;
  --high-blue-oklch: oklch(0.684 0.121 239.3);
}

.element {
  color: var(--high-blue);
  background-color: hsl(203 68% 57%);
  border-color: oklch(0.684 0.121 239.3);
}

Tailwind CSS v4

@theme {
  --color-high-blue: #47a3dc;
  --color-high-blue-50: #d8faff;
  --color-high-blue-100: #c5eeff;
  --color-high-blue-200: #a6dcff;
  --color-high-blue-300: #7dbff0;
  --color-high-blue-400: #52a8de;
  --color-high-blue-500: #1b8fcd;
  --color-high-blue-600: #1c79ad;
  --color-high-blue-700: #17618b;
  --color-high-blue-800: #094867;
  --color-high-blue-900: #063248;
  --color-high-blue-950: #001d2f;
}

SCSS

$high-blue: #47a3dc;
$high-blue-rgb: 71, 163, 220;
$high-blue-light: mix(#fff, $high-blue, 20%);
$high-blue-dark: mix(#000, $high-blue, 20%);

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