#338265

CSS

:root {
  --shadows-of-time: #338265;
  --shadows-of-time-rgb: 51 130 101;
  --shadows-of-time-oklch: oklch(0.549 0.09 165.9);
}

.element {
  color: var(--shadows-of-time);
  background-color: hsl(158 44% 35%);
  border-color: oklch(0.549 0.09 165.9);
}

Tailwind CSS v4

@theme {
  --color-shadows-of-time: #338265;
  --color-shadows-of-time-50: #ddfef0;
  --color-shadows-of-time-100: #ccf2e2;
  --color-shadows-of-time-200: #afe1cd;
  --color-shadows-of-time-300: #89c7ae;
  --color-shadows-of-time-400: #67b092;
  --color-shadows-of-time-500: #419978;
  --color-shadows-of-time-600: #388166;
  --color-shadows-of-time-700: #2d6851;
  --color-shadows-of-time-800: #204c3a;
  --color-shadows-of-time-900: #153528;
  --color-shadows-of-time-950: #062016;
}

SCSS

$shadows-of-time: #338265;
$shadows-of-time-rgb: 51, 130, 101;
$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);
}