Rain or Shine

CSS

:root {
  --rain-or-shine: #b5dcea;
  --rain-or-shine-rgb: 181 220 234;
  --rain-or-shine-oklch: oklch(0.871 0.045 221.6);
}

.element {
  color: var(--rain-or-shine);
  background-color: hsl(196 56% 81%);
  border-color: oklch(0.871 0.045 221.6);
}

Tailwind CSS v4

@theme {
  --color-rain-or-shine: #b5dcea;
  --color-rain-or-shine-50: #e8f8ff;
  --color-rain-or-shine-100: #d9ecf3;
  --color-rain-or-shine-200: #c0d9e3;
  --color-rain-or-shine-300: #9fbdc9;
  --color-rain-or-shine-400: #82a5b2;
  --color-rain-or-shine-500: #658d9c;
  --color-rain-or-shine-600: #567884;
  --color-rain-or-shine-700: #446069;
  --color-rain-or-shine-800: #31464d;
  --color-rain-or-shine-900: #213136;
  --color-rain-or-shine-950: #101d21;
}

SCSS

$rain-or-shine: #b5dcea;
$rain-or-shine-rgb: 181, 220, 234;
$rain-or-shine-light: mix(#fff, $rain-or-shine, 20%);
$rain-or-shine-dark: mix(#000, $rain-or-shine, 20%);

.element {
  color: $rain-or-shine;
  box-shadow: 0 0 0 2px rgba($rain-or-shine, 0.35);
}