Blue Glaze

CSS

:root {
  --blue-glaze: #56597c;
  --blue-glaze-rgb: 86 89 124;
  --blue-glaze-oklch: oklch(0.476 0.056 280.2);
}

.element {
  color: var(--blue-glaze);
  background-color: hsl(235 18% 41%);
  border-color: oklch(0.476 0.056 280.2);
}

Tailwind CSS v4

@theme {
  --color-blue-glaze: #56597c;
  --color-blue-glaze-50: #f2f4ff;
  --color-blue-glaze-100: #e4e6fb;
  --color-blue-glaze-200: #d0d2ec;
  --color-blue-glaze-300: #b2b4d4;
  --color-blue-glaze-400: #979bc0;
  --color-blue-glaze-500: #7e82ab;
  --color-blue-glaze-600: #6b6e91;
  --color-blue-glaze-700: #565874;
  --color-blue-glaze-800: #3e4156;
  --color-blue-glaze-900: #2a2d3c;
  --color-blue-glaze-950: #181a26;
}

SCSS

$blue-glaze: #56597c;
$blue-glaze-rgb: 86, 89, 124;
$blue-glaze-light: mix(#fff, $blue-glaze, 20%);
$blue-glaze-dark: mix(#000, $blue-glaze, 20%);

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