Twin Blue

CSS

:root {
  --twin-blue: #bedbed;
  --twin-blue-rgb: 190 219 237;
  --twin-blue-oklch: oklch(0.876 0.04 235.2);
}

.element {
  color: var(--twin-blue);
  background-color: hsl(203 57% 84%);
  border-color: oklch(0.876 0.04 235.2);
}

Tailwind CSS v4

@theme {
  --color-twin-blue: #bedbed;
  --color-twin-blue-50: #ebf7ff;
  --color-twin-blue-100: #dceaf4;
  --color-twin-blue-200: #c5d7e3;
  --color-twin-blue-300: #a5bbca;
  --color-twin-blue-400: #88a3b3;
  --color-twin-blue-500: #6d8b9d;
  --color-twin-blue-600: #5d7685;
  --color-twin-blue-700: #4a5e6a;
  --color-twin-blue-800: #35454e;
  --color-twin-blue-900: #243036;
  --color-twin-blue-950: #131c21;
}

SCSS

$twin-blue: #bedbed;
$twin-blue-rgb: 190, 219, 237;
$twin-blue-light: mix(#fff, $twin-blue, 20%);
$twin-blue-dark: mix(#000, $twin-blue, 20%);

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