Ball Blue

CSS

:root {
  --ball-blue: #21abcd;
  --ball-blue-rgb: 33 171 205;
  --ball-blue-oklch: oklch(0.688 0.119 219.9);
}

.element {
  color: var(--ball-blue);
  background-color: hsl(192 72% 47%);
  border-color: oklch(0.688 0.119 219.9);
}

Tailwind CSS v4

@theme {
  --color-ball-blue: #21abcd;
  --color-ball-blue-50: #d1feff;
  --color-ball-blue-100: #bdf2ff;
  --color-ball-blue-200: #9be0f9;
  --color-ball-blue-300: #6dc5e3;
  --color-ball-blue-400: #35aecf;
  --color-ball-blue-500: #0097bc;
  --color-ball-blue-600: #00809f;
  --color-ball-blue-700: #00667f;
  --color-ball-blue-800: #004c5d;
  --color-ball-blue-900: #003441;
  --color-ball-blue-950: #00202a;
}

SCSS

$ball-blue: #21abcd;
$ball-blue-rgb: 33, 171, 205;
$ball-blue-light: mix(#fff, $ball-blue, 20%);
$ball-blue-dark: mix(#000, $ball-blue, 20%);

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