Bermuda Triangle

CSS

:root {
  --bermuda-triangle: #6f8c9f;
  --bermuda-triangle-rgb: 111 140 159;
  --bermuda-triangle-oklch: oklch(0.625 0.044 237.1);
}

.element {
  color: var(--bermuda-triangle);
  background-color: hsl(204 20% 53%);
  border-color: oklch(0.625 0.044 237.1);
}

Tailwind CSS v4

@theme {
  --color-bermuda-triangle: #6f8c9f;
  --color-bermuda-triangle-50: #eaf7ff;
  --color-bermuda-triangle-100: #dbeaf5;
  --color-bermuda-triangle-200: #c4d7e5;
  --color-bermuda-triangle-300: #a4bbcc;
  --color-bermuda-triangle-400: #87a3b5;
  --color-bermuda-triangle-500: #6b8ba0;
  --color-bermuda-triangle-600: #5b7687;
  --color-bermuda-triangle-700: #485e6c;
  --color-bermuda-triangle-800: #344550;
  --color-bermuda-triangle-900: #233037;
  --color-bermuda-triangle-950: #121c22;
}

SCSS

$bermuda-triangle: #6f8c9f;
$bermuda-triangle-rgb: 111, 140, 159;
$bermuda-triangle-light: mix(#fff, $bermuda-triangle, 20%);
$bermuda-triangle-dark: mix(#000, $bermuda-triangle, 20%);

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