Erebus Blue

CSS

:root {
  --erebus-blue: #060030;
  --erebus-blue-rgb: 6 0 48;
  --erebus-blue-oklch: oklch(0.148 0.092 275.6);
}

.element {
  color: var(--erebus-blue);
  background-color: hsl(248 100% 9%);
  border-color: oklch(0.148 0.092 275.6);
}

Tailwind CSS v4

@theme {
  --color-erebus-blue: #060030;
  --color-erebus-blue-50: #eef3ff;
  --color-erebus-blue-100: #e0e6ff;
  --color-erebus-blue-200: #cad1fc;
  --color-erebus-blue-300: #abb3e7;
  --color-erebus-blue-400: #8f9ad5;
  --color-erebus-blue-500: #7581c3;
  --color-erebus-blue-600: #636da5;
  --color-erebus-blue-700: #4f5784;
  --color-erebus-blue-800: #384062;
  --color-erebus-blue-900: #262c45;
  --color-erebus-blue-950: #15192d;
}

SCSS

$erebus-blue: #060030;
$erebus-blue-rgb: 6, 0, 48;
$erebus-blue-light: mix(#fff, $erebus-blue, 20%);
$erebus-blue-dark: mix(#000, $erebus-blue, 20%);

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