Moonstone Blue

CSS

:root {
  --moonstone-blue: #73a9c2;
  --moonstone-blue-rgb: 115 169 194;
  --moonstone-blue-oklch: oklch(0.706 0.067 228.7);
}

.element {
  color: var(--moonstone-blue);
  background-color: hsl(199 39% 61%);
  border-color: oklch(0.706 0.067 228.7);
}

Tailwind CSS v4

@theme {
  --color-moonstone-blue: #73a9c2;
  --color-moonstone-blue-50: #e3f9ff;
  --color-moonstone-blue-100: #d2edfb;
  --color-moonstone-blue-200: #b8daec;
  --color-moonstone-blue-300: #95bed4;
  --color-moonstone-blue-400: #74a7be;
  --color-moonstone-blue-500: #538faa;
  --color-moonstone-blue-600: #47798f;
  --color-moonstone-blue-700: #396173;
  --color-moonstone-blue-800: #274754;
  --color-moonstone-blue-900: #1a313b;
  --color-moonstone-blue-950: #0b1d25;
}

SCSS

$moonstone-blue: #73a9c2;
$moonstone-blue-rgb: 115, 169, 194;
$moonstone-blue-light: mix(#fff, $moonstone-blue, 20%);
$moonstone-blue-dark: mix(#000, $moonstone-blue, 20%);

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