#47A6C0

CSS

:root {
  --true-sky-blue: #47a6c0;
  --true-sky-blue-rgb: 71 166 192;
  --true-sky-blue-oklch: oklch(0.679 0.096 218.8);
}

.element {
  color: var(--true-sky-blue);
  background-color: hsl(193 49% 52%);
  border-color: oklch(0.679 0.096 218.8);
}

Tailwind CSS v4

@theme {
  --color-true-sky-blue: #47a6c0;
  --color-true-sky-blue-50: #d8fcff;
  --color-true-sky-blue-100: #c6f0ff;
  --color-true-sky-blue-200: #a7def1;
  --color-true-sky-blue-300: #7ec3da;
  --color-true-sky-blue-400: #54acc5;
  --color-true-sky-blue-500: #1d95b1;
  --color-true-sky-blue-600: #1d7e95;
  --color-true-sky-blue-700: #186578;
  --color-true-sky-blue-800: #0d4a58;
  --color-true-sky-blue-900: #08343d;
  --color-true-sky-blue-950: #001f27;
}

SCSS

$true-sky-blue: #47a6c0;
$true-sky-blue-rgb: 71, 166, 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);
}