Blue Heeler

CSS

:root {
  --blue-heeler: #939cab;
  --blue-heeler-rgb: 147 156 171;
  --blue-heeler-oklch: oklch(0.69 0.024 260.7);
}

.element {
  color: var(--blue-heeler);
  background-color: hsl(217 13% 62%);
  border-color: oklch(0.69 0.024 260.7);
}

Tailwind CSS v4

@theme {
  --color-blue-heeler: #939cab;
  --color-blue-heeler-50: #f1f5fc;
  --color-blue-heeler-100: #e4e8f0;
  --color-blue-heeler-200: #cfd4df;
  --color-blue-heeler-300: #b1b8c4;
  --color-blue-heeler-400: #969fad;
  --color-blue-heeler-500: #7d8797;
  --color-blue-heeler-600: #6a727f;
  --color-blue-heeler-700: #555b66;
  --color-blue-heeler-800: #3d434b;
  --color-blue-heeler-900: #2a2e34;
  --color-blue-heeler-950: #181b1f;
}

SCSS

$blue-heeler: #939cab;
$blue-heeler-rgb: 147, 156, 171;
$blue-heeler-light: mix(#fff, $blue-heeler, 20%);
$blue-heeler-dark: mix(#000, $blue-heeler, 20%);

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