#146FEB

CSS

:root {
  --deep-sky-blue: #146feb;
  --deep-sky-blue-rgb: 20 111 235;
  --deep-sky-blue-oklch: oklch(0.567 0.204 258.7);
}

.element {
  color: var(--deep-sky-blue);
  background-color: hsl(215 84% 50%);
  border-color: oklch(0.567 0.204 258.7);
}

Tailwind CSS v4

@theme {
  --color-deep-sky-blue: #146feb;
  --color-deep-sky-blue-50: #d4f7ff;
  --color-deep-sky-blue-100: #c1e9ff;
  --color-deep-sky-blue-200: #a2d5ff;
  --color-deep-sky-blue-300: #79b6ff;
  --color-deep-sky-blue-400: #4b9bff;
  --color-deep-sky-blue-500: #177eff;
  --color-deep-sky-blue-600: #176be0;
  --color-deep-sky-blue-700: #1356b4;
  --color-deep-sky-blue-800: #013f87;
  --color-deep-sky-blue-900: #022c5f;
  --color-deep-sky-blue-950: #001841;
}

SCSS

$deep-sky-blue: #146feb;
$deep-sky-blue-rgb: 20, 111, 235;
$deep-sky-blue-light: mix(#fff, $deep-sky-blue, 20%);
$deep-sky-blue-dark: mix(#000, $deep-sky-blue, 20%);

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