#26856D

CSS

:root {
  --shadows-of-time: #26856d;
  --shadows-of-time-rgb: 38 133 109;
  --shadows-of-time-oklch: oklch(0.556 0.095 172.2);
}

.element {
  color: var(--shadows-of-time);
  background-color: hsl(165 56% 34%);
  border-color: oklch(0.556 0.095 172.2);
}

Tailwind CSS v4

@theme {
  --color-shadows-of-time: #26856d;
  --color-shadows-of-time-50: #dafff3;
  --color-shadows-of-time-100: #c8f3e5;
  --color-shadows-of-time-200: #aae2d1;
  --color-shadows-of-time-300: #82c8b4;
  --color-shadows-of-time-400: #5eb198;
  --color-shadows-of-time-500: #309a7f;
  --color-shadows-of-time-600: #2b826c;
  --color-shadows-of-time-700: #236956;
  --color-shadows-of-time-800: #184d3d;
  --color-shadows-of-time-900: #10352a;
  --color-shadows-of-time-950: #022018;
}

SCSS

$shadows-of-time: #26856d;
$shadows-of-time-rgb: 38, 133, 109;
$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);
}