#39836B

CSS

:root {
  --shadows-of-time: #39836b;
  --shadows-of-time-rgb: 57 131 107;
  --shadows-of-time-oklch: oklch(0.556 0.083 169.2);
}

.element {
  color: var(--shadows-of-time);
  background-color: hsl(161 39% 37%);
  border-color: oklch(0.556 0.083 169.2);
}

Tailwind CSS v4

@theme {
  --color-shadows-of-time: #39836b;
  --color-shadows-of-time-50: #dffdf2;
  --color-shadows-of-time-100: #cdf1e4;
  --color-shadows-of-time-200: #b1e0d0;
  --color-shadows-of-time-300: #8cc6b2;
  --color-shadows-of-time-400: #6aaf96;
  --color-shadows-of-time-500: #45987d;
  --color-shadows-of-time-600: #3c816a;
  --color-shadows-of-time-700: #2f6754;
  --color-shadows-of-time-800: #224c3c;
  --color-shadows-of-time-900: #173529;
  --color-shadows-of-time-950: #072017;
}

SCSS

$shadows-of-time: #39836b;
$shadows-of-time-rgb: 57, 131, 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);
}