#47A3D9

CSS

:root {
  --high-blue: #47a3d9;
  --high-blue-rgb: 71 163 217;
  --high-blue-oklch: oklch(0.683 0.118 237.8);
}

.element {
  color: var(--high-blue);
  background-color: hsl(202 66% 56%);
  border-color: oklch(0.683 0.118 237.8);
}

Tailwind CSS v4

@theme {
  --color-high-blue: #47a3d9;
  --color-high-blue-50: #d8fbff;
  --color-high-blue-100: #c5eeff;
  --color-high-blue-200: #a6dcff;
  --color-high-blue-300: #7ec0ee;
  --color-high-blue-400: #53a8dc;
  --color-high-blue-500: #1c90ca;
  --color-high-blue-600: #1c7aab;
  --color-high-blue-700: #176189;
  --color-high-blue-800: #0a4865;
  --color-high-blue-900: #073247;
  --color-high-blue-950: #001e2e;
}

SCSS

$high-blue: #47a3d9;
$high-blue-rgb: 71, 163, 217;
$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);
}