Midnight in the Tropics

CSS

:root {
  --midnight-in-the-tropics: #435964;
  --midnight-in-the-tropics-rgb: 67 89 100;
  --midnight-in-the-tropics-oklch: oklch(0.45 0.032 230);
}

.element {
  color: var(--midnight-in-the-tropics);
  background-color: hsl(200 20% 33%);
  border-color: oklch(0.45 0.032 230);
}

Tailwind CSS v4

@theme {
  --color-midnight-in-the-tropics: #435964;
  --color-midnight-in-the-tropics-50: #ecf7fd;
  --color-midnight-in-the-tropics-100: #deeaf1;
  --color-midnight-in-the-tropics-200: #c7d7e0;
  --color-midnight-in-the-tropics-300: #a8bbc5;
  --color-midnight-in-the-tropics-400: #8ca2ae;
  --color-midnight-in-the-tropics-500: #718b98;
  --color-midnight-in-the-tropics-600: #607580;
  --color-midnight-in-the-tropics-700: #4c5e67;
  --color-midnight-in-the-tropics-800: #37454b;
  --color-midnight-in-the-tropics-900: #263034;
  --color-midnight-in-the-tropics-950: #141c20;
}

SCSS

$midnight-in-the-tropics: #435964;
$midnight-in-the-tropics-rgb: 67, 89, 100;
$midnight-in-the-tropics-light: mix(#fff, $midnight-in-the-tropics, 20%);
$midnight-in-the-tropics-dark: mix(#000, $midnight-in-the-tropics, 20%);

.element {
  color: $midnight-in-the-tropics;
  box-shadow: 0 0 0 2px rgba($midnight-in-the-tropics, 0.35);
}