Gemstone Blue

CSS

:root {
  --gemstone-blue: #004f6d;
  --gemstone-blue-rgb: 0 79 109;
  --gemstone-blue-oklch: oklch(0.402 0.083 232.5);
}

.element {
  color: var(--gemstone-blue);
  background-color: hsl(197 100% 21%);
  border-color: oklch(0.402 0.083 232.5);
}

Tailwind CSS v4

@theme {
  --color-gemstone-blue: #004f6d;
  --color-gemstone-blue-50: #dffaff;
  --color-gemstone-blue-100: #ceedff;
  --color-gemstone-blue-200: #b3dbf3;
  --color-gemstone-blue-300: #8ebfdc;
  --color-gemstone-blue-400: #6ba7c7;
  --color-gemstone-blue-500: #4790b4;
  --color-gemstone-blue-600: #3d7998;
  --color-gemstone-blue-700: #31617a;
  --color-gemstone-blue-800: #21485a;
  --color-gemstone-blue-900: #16323f;
  --color-gemstone-blue-950: #071d28;
}

SCSS

$gemstone-blue: #004f6d;
$gemstone-blue-rgb: 0, 79, 109;
$gemstone-blue-light: mix(#fff, $gemstone-blue, 20%);
$gemstone-blue-dark: mix(#000, $gemstone-blue, 20%);

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