#30826B

CSS

:root {
  --shadows-of-time: #30826b;
  --shadows-of-time-rgb: 48 130 107;
  --shadows-of-time-oklch: oklch(0.55 0.087 171.3);
}

.element {
  color: var(--shadows-of-time);
  background-color: hsl(163 46% 35%);
  border-color: oklch(0.55 0.087 171.3);
}

Tailwind CSS v4

@theme {
  --color-shadows-of-time: #30826b;
  --color-shadows-of-time-50: #ddfef3;
  --color-shadows-of-time-100: #cbf2e5;
  --color-shadows-of-time-200: #aee1d1;
  --color-shadows-of-time-300: #88c6b3;
  --color-shadows-of-time-400: #65af98;
  --color-shadows-of-time-500: #3d997f;
  --color-shadows-of-time-600: #35816b;
  --color-shadows-of-time-700: #2b6856;
  --color-shadows-of-time-800: #1e4c3d;
  --color-shadows-of-time-900: #14352a;
  --color-shadows-of-time-950: #052018;
}

SCSS

$shadows-of-time: #30826b;
$shadows-of-time-rgb: 48, 130, 107;
$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);
}