#14A0C0

CSS

:root {
  --true-sky-blue: #14a0c0;
  --true-sky-blue-rgb: 20 160 192;
  --true-sky-blue-oklch: oklch(0.653 0.115 219.4);
}

.element {
  color: var(--true-sky-blue);
  background-color: hsl(191 81% 42%);
  border-color: oklch(0.653 0.115 219.4);
}

Tailwind CSS v4

@theme {
  --color-true-sky-blue: #14a0c0;
  --color-true-sky-blue-50: #d2feff;
  --color-true-sky-blue-100: #bef1ff;
  --color-true-sky-blue-200: #9de0f7;
  --color-true-sky-blue-300: #6fc5e1;
  --color-true-sky-blue-400: #3baecd;
  --color-true-sky-blue-500: #0097ba;
  --color-true-sky-blue-600: #00809d;
  --color-true-sky-blue-700: #00667e;
  --color-true-sky-blue-800: #004b5c;
  --color-true-sky-blue-900: #003441;
  --color-true-sky-blue-950: #002029;
}

SCSS

$true-sky-blue: #14a0c0;
$true-sky-blue-rgb: 20, 160, 192;
$true-sky-blue-light: mix(#fff, $true-sky-blue, 20%);
$true-sky-blue-dark: mix(#000, $true-sky-blue, 20%);

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