Rock Blue

CSS

:root {
  --rock-blue: #93a2ba;
  --rock-blue-rgb: 147 162 186;
  --rock-blue-oklch: oklch(0.709 0.039 259.8);
}

.element {
  color: var(--rock-blue);
  background-color: hsl(217 22% 65%);
  border-color: oklch(0.709 0.039 259.8);
}

Tailwind CSS v4

@theme {
  --color-rock-blue: #93a2ba;
  --color-rock-blue-50: #eff5ff;
  --color-rock-blue-100: #e1e8f5;
  --color-rock-blue-200: #cbd5e5;
  --color-rock-blue-300: #adb8cc;
  --color-rock-blue-400: #919fb6;
  --color-rock-blue-500: #7787a1;
  --color-rock-blue-600: #657288;
  --color-rock-blue-700: #515b6d;
  --color-rock-blue-800: #3a4350;
  --color-rock-blue-900: #282e38;
  --color-rock-blue-950: #161b22;
}

SCSS

$rock-blue: #93a2ba;
$rock-blue-rgb: 147, 162, 186;
$rock-blue-light: mix(#fff, $rock-blue, 20%);
$rock-blue-dark: mix(#000, $rock-blue, 20%);

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