Blue Tribute

CSS

:root {
  --blue-tribute: #a9b8c8;
  --blue-tribute-rgb: 169 184 200;
  --blue-tribute-oklch: oklch(0.776 0.028 249.9);
}

.element {
  color: var(--blue-tribute);
  background-color: hsl(211 22% 72%);
  border-color: oklch(0.776 0.028 249.9);
}

Tailwind CSS v4

@theme {
  --color-blue-tribute: #a9b8c8;
  --color-blue-tribute-50: #eff6fd;
  --color-blue-tribute-100: #e1e9f1;
  --color-blue-tribute-200: #ccd5e0;
  --color-blue-tribute-300: #adb9c6;
  --color-blue-tribute-400: #92a0af;
  --color-blue-tribute-500: #788899;
  --color-blue-tribute-600: #667381;
  --color-blue-tribute-700: #515c67;
  --color-blue-tribute-800: #3b434c;
  --color-blue-tribute-900: #282f35;
  --color-blue-tribute-950: #161b20;
}

SCSS

$blue-tribute: #a9b8c8;
$blue-tribute-rgb: 169, 184, 200;
$blue-tribute-light: mix(#fff, $blue-tribute, 20%);
$blue-tribute-dark: mix(#000, $blue-tribute, 20%);

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