#238366

CSS

:root {
  --shadows-of-time: #238366;
  --shadows-of-time-rgb: 35 131 102;
  --shadows-of-time-oklch: oklch(0.548 0.099 168.3);
}

.element {
  color: var(--shadows-of-time);
  background-color: hsl(162 58% 33%);
  border-color: oklch(0.548 0.099 168.3);
}

Tailwind CSS v4

@theme {
  --color-shadows-of-time: #238366;
  --color-shadows-of-time-50: #dafff1;
  --color-shadows-of-time-100: #c8f3e3;
  --color-shadows-of-time-200: #aae2ce;
  --color-shadows-of-time-300: #82c8b0;
  --color-shadows-of-time-400: #5eb194;
  --color-shadows-of-time-500: #319b7a;
  --color-shadows-of-time-600: #2c8367;
  --color-shadows-of-time-700: #236952;
  --color-shadows-of-time-800: #194d3b;
  --color-shadows-of-time-900: #103628;
  --color-shadows-of-time-950: #032116;
}

SCSS

$shadows-of-time: #238366;
$shadows-of-time-rgb: 35, 131, 102;
$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);
}