#008ECD

CSS

:root {
  --way-beyond-the-blue: #008ecd;
  --way-beyond-the-blue-rgb: 0 142 205;
  --way-beyond-the-blue-oklch: oklch(0.615 0.137 238.5);
}

.element {
  color: var(--way-beyond-the-blue);
  background-color: hsl(198 100% 40%);
  border-color: oklch(0.615 0.137 238.5);
}

Tailwind CSS v4

@theme {
  --color-way-beyond-the-blue: #008ecd;
  --color-way-beyond-the-blue-50: #d3fbff;
  --color-way-beyond-the-blue-100: #bfefff;
  --color-way-beyond-the-blue-200: #9eddff;
  --color-way-beyond-the-blue-300: #72c0f7;
  --color-way-beyond-the-blue-400: #3fa9e6;
  --color-way-beyond-the-blue-500: #0090d6;
  --color-way-beyond-the-blue-600: #007ab4;
  --color-way-beyond-the-blue-700: #006291;
  --color-way-beyond-the-blue-800: #00486b;
  --color-way-beyond-the-blue-900: #00324b;
  --color-way-beyond-the-blue-950: #001e32;
}

SCSS

$way-beyond-the-blue: #008ecd;
$way-beyond-the-blue-rgb: 0, 142, 205;
$way-beyond-the-blue-light: mix(#fff, $way-beyond-the-blue, 20%);
$way-beyond-the-blue-dark: mix(#000, $way-beyond-the-blue, 20%);

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