#1070E8

CSS

:root {
  --deep-sky-blue: #1070e8;
  --deep-sky-blue-rgb: 16 112 232;
  --deep-sky-blue-oklch: oklch(0.566 0.199 257.8);
}

.element {
  color: var(--deep-sky-blue);
  background-color: hsl(213 87% 49%);
  border-color: oklch(0.566 0.199 257.8);
}

Tailwind CSS v4

@theme {
  --color-deep-sky-blue: #1070e8;
  --color-deep-sky-blue-50: #d4f7ff;
  --color-deep-sky-blue-100: #c1eaff;
  --color-deep-sky-blue-200: #a1d5ff;
  --color-deep-sky-blue-300: #79b7ff;
  --color-deep-sky-blue-400: #4a9cff;
  --color-deep-sky-blue-500: #127fff;
  --color-deep-sky-blue-600: #156cdd;
  --color-deep-sky-blue-700: #1157b2;
  --color-deep-sky-blue-800: #004085;
  --color-deep-sky-blue-900: #012c5e;
  --color-deep-sky-blue-950: #001840;
}

SCSS

$deep-sky-blue: #1070e8;
$deep-sky-blue-rgb: 16, 112, 232;
$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);
}