#57A7A8

CSS

:root {
  --twilight-meadow: #57a7a8;
  --twilight-meadow-rgb: 87 167 168;
  --twilight-meadow-oklch: oklch(0.678 0.079 196.5);
}

.element {
  color: var(--twilight-meadow);
  background-color: hsl(181 32% 50%);
  border-color: oklch(0.678 0.079 196.5);
}

Tailwind CSS v4

@theme {
  --color-twilight-meadow: #57a7a8;
  --color-twilight-meadow-50: #dcfdfd;
  --color-twilight-meadow-100: #cbf0f2;
  --color-twilight-meadow-200: #aedfe1;
  --color-twilight-meadow-300: #87c4c6;
  --color-twilight-meadow-400: #62adae;
  --color-twilight-meadow-500: #399698;
  --color-twilight-meadow-600: #327f80;
  --color-twilight-meadow-700: #286667;
  --color-twilight-meadow-800: #1b4b4b;
  --color-twilight-meadow-900: #123434;
  --color-twilight-meadow-950: #041f1f;
}

SCSS

$twilight-meadow: #57a7a8;
$twilight-meadow-rgb: 87, 167, 168;
$twilight-meadow-light: mix(#fff, $twilight-meadow, 20%);
$twilight-meadow-dark: mix(#000, $twilight-meadow, 20%);

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