#46A2DE

CSS

:root {
  --high-blue: #46a2de;
  --high-blue-rgb: 70 162 222;
  --high-blue-oklch: oklch(0.683 0.124 240.7);
}

.element {
  color: var(--high-blue);
  background-color: hsl(204 70% 57%);
  border-color: oklch(0.683 0.124 240.7);
}

Tailwind CSS v4

@theme {
  --color-high-blue: #46a2de;
  --color-high-blue-50: #d7faff;
  --color-high-blue-100: #c5eeff;
  --color-high-blue-200: #a6dbff;
  --color-high-blue-300: #7dbff2;
  --color-high-blue-400: #52a7e0;
  --color-high-blue-500: #1a8fd0;
  --color-high-blue-600: #1b79af;
  --color-high-blue-700: #16618d;
  --color-high-blue-800: #094768;
  --color-high-blue-900: #063149;
  --color-high-blue-950: #001d30;
}

SCSS

$high-blue: #46a2de;
$high-blue-rgb: 70, 162, 222;
$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);
}