#0074E7

CSS

:root {
  --deep-sky-blue: #0074e7;
  --deep-sky-blue-rgb: 0 116 231;
  --deep-sky-blue-oklch: oklch(0.572 0.195 255.9);
}

.element {
  color: var(--deep-sky-blue);
  background-color: hsl(210 100% 45%);
  border-color: oklch(0.572 0.195 255.9);
}

Tailwind CSS v4

@theme {
  --color-deep-sky-blue: #0074e7;
  --color-deep-sky-blue-50: #d3f8ff;
  --color-deep-sky-blue-100: #c0eaff;
  --color-deep-sky-blue-200: #9fd6ff;
  --color-deep-sky-blue-300: #76b8ff;
  --color-deep-sky-blue-400: #459eff;
  --color-deep-sky-blue-500: #0081ff;
  --color-deep-sky-blue-600: #056eda;
  --color-deep-sky-blue-700: #0658af;
  --color-deep-sky-blue-800: #004183;
  --color-deep-sky-blue-900: #002d5d;
  --color-deep-sky-blue-950: #00193f;
}

SCSS

$deep-sky-blue: #0074e7;
$deep-sky-blue-rgb: 0, 116, 231;
$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);
}