#BCD8D6

CSS

:root {
  --coast-to-coast: #bcd8d6;
  --coast-to-coast-rgb: 188 216 214;
  --coast-to-coast-oklch: oklch(0.861 0.03 191.4);
}

.element {
  color: var(--coast-to-coast);
  background-color: hsl(176 26% 79%);
  border-color: oklch(0.861 0.03 191.4);
}

Tailwind CSS v4

@theme {
  --color-coast-to-coast: #bcd8d6;
  --color-coast-to-coast-50: #ecf8f7;
  --color-coast-to-coast-100: #ddebeb;
  --color-coast-to-coast-200: #c6d9d8;
  --color-coast-to-coast-300: #a7bdbc;
  --color-coast-to-coast-400: #8ba4a3;
  --color-coast-to-coast-500: #708d8b;
  --color-coast-to-coast-600: #5f7776;
  --color-coast-to-coast-700: #4c5f5e;
  --color-coast-to-coast-800: #374644;
  --color-coast-to-coast-900: #25302f;
  --color-coast-to-coast-950: #141d1c;
}

SCSS

$coast-to-coast: #bcd8d6;
$coast-to-coast-rgb: 188, 216, 214;
$coast-to-coast-light: mix(#fff, $coast-to-coast, 20%);
$coast-to-coast-dark: mix(#000, $coast-to-coast, 20%);

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