Blue Shimmer

CSS

:root {
  --blue-shimmer: #b3dae2;
  --blue-shimmer-rgb: 179 218 226;
  --blue-shimmer-oklch: oklch(0.863 0.042 211.5);
}

.element {
  color: var(--blue-shimmer);
  background-color: hsl(190 45% 79%);
  border-color: oklch(0.863 0.042 211.5);
}

Tailwind CSS v4

@theme {
  --color-blue-shimmer: #b3dae2;
  --color-blue-shimmer-50: #e8f9fc;
  --color-blue-shimmer-100: #d9ecf0;
  --color-blue-shimmer-200: #c1d9df;
  --color-blue-shimmer-300: #a0bec5;
  --color-blue-shimmer-400: #82a6ad;
  --color-blue-shimmer-500: #658e96;
  --color-blue-shimmer-600: #56787f;
  --color-blue-shimmer-700: #456066;
  --color-blue-shimmer-800: #31474a;
  --color-blue-shimmer-900: #213134;
  --color-blue-shimmer-950: #111d1f;
}

SCSS

$blue-shimmer: #b3dae2;
$blue-shimmer-rgb: 179, 218, 226;
$blue-shimmer-light: mix(#fff, $blue-shimmer, 20%);
$blue-shimmer-dark: mix(#000, $blue-shimmer, 20%);

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