#218568

CSS

:root {
  --shadows-of-time: #218568;
  --shadows-of-time-rgb: 33 133 104;
  --shadows-of-time-oklch: oklch(0.553 0.1 168.8);
}

.element {
  color: var(--shadows-of-time);
  background-color: hsl(163 60% 33%);
  border-color: oklch(0.553 0.1 168.8);
}

Tailwind CSS v4

@theme {
  --color-shadows-of-time: #218568;
  --color-shadows-of-time-50: #dafff1;
  --color-shadows-of-time-100: #c7f3e3;
  --color-shadows-of-time-200: #a9e3ce;
  --color-shadows-of-time-300: #81c8b0;
  --color-shadows-of-time-400: #5bb294;
  --color-shadows-of-time-500: #2c9b7a;
  --color-shadows-of-time-600: #288368;
  --color-shadows-of-time-700: #206953;
  --color-shadows-of-time-800: #174d3b;
  --color-shadows-of-time-900: #0f3628;
  --color-shadows-of-time-950: #022116;
}

SCSS

$shadows-of-time: #218568;
$shadows-of-time-rgb: 33, 133, 104;
$shadows-of-time-light: mix(#fff, $shadows-of-time, 20%);
$shadows-of-time-dark: mix(#000, $shadows-of-time, 20%);

.element {
  color: $shadows-of-time;
  box-shadow: 0 0 0 2px rgba($shadows-of-time, 0.35);
}