Cool Waters

CSS

:root {
  --cool-waters: #487678;
  --cool-waters-rgb: 72 118 120;
  --cool-waters-oklch: oklch(0.534 0.05 199.3);
}

.element {
  color: var(--cool-waters);
  background-color: hsl(183 25% 38%);
  border-color: oklch(0.534 0.05 199.3);
}

Tailwind CSS v4

@theme {
  --color-cool-waters: #487678;
  --color-cool-waters-50: #e5fafb;
  --color-cool-waters-100: #d5edef;
  --color-cool-waters-200: #bcdbdd;
  --color-cool-waters-300: #9ac0c2;
  --color-cool-waters-400: #7ba8aa;
  --color-cool-waters-500: #5d9193;
  --color-cool-waters-600: #4f7a7c;
  --color-cool-waters-700: #3f6263;
  --color-cool-waters-800: #2d4848;
  --color-cool-waters-900: #1e3232;
  --color-cool-waters-950: #0e1e1e;
}

SCSS

$cool-waters: #487678;
$cool-waters-rgb: 72, 118, 120;
$cool-waters-light: mix(#fff, $cool-waters, 20%);
$cool-waters-dark: mix(#000, $cool-waters, 20%);

.element {
  color: $cool-waters;
  box-shadow: 0 0 0 2px rgba($cool-waters, 0.35);
}