Platonic Blue

CSS

:root {
  --platonic-blue: #88ccff;
  --platonic-blue-rgb: 136 204 255;
  --platonic-blue-oklch: oklch(0.819 0.1 241.9);
}

.element {
  color: var(--platonic-blue);
  background-color: hsl(206 100% 77%);
  border-color: oklch(0.819 0.1 241.9);
}

Tailwind CSS v4

@theme {
  --color-platonic-blue: #88ccff;
  --color-platonic-blue-50: #def9ff;
  --color-platonic-blue-100: #cdecff;
  --color-platonic-blue-200: #b1dafc;
  --color-platonic-blue-300: #8bbee7;
  --color-platonic-blue-400: #67a6d4;
  --color-platonic-blue-500: #418dc2;
  --color-platonic-blue-600: #3978a4;
  --color-platonic-blue-700: #2d6084;
  --color-platonic-blue-800: #1d4761;
  --color-platonic-blue-900: #133144;
  --color-platonic-blue-950: #051d2c;
}

SCSS

$platonic-blue: #88ccff;
$platonic-blue-rgb: 136, 204, 255;
$platonic-blue-light: mix(#fff, $platonic-blue, 20%);
$platonic-blue-dark: mix(#000, $platonic-blue, 20%);

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