Hopeful Blue

CSS

:root {
  --hopeful-blue: #a2b9bf;
  --hopeful-blue-rgb: 162 185 191;
  --hopeful-blue-oklch: oklch(0.77 0.027 215.2);
}

.element {
  color: var(--hopeful-blue);
  background-color: hsl(192 18% 69%);
  border-color: oklch(0.77 0.027 215.2);
}

Tailwind CSS v4

@theme {
  --color-hopeful-blue: #a2b9bf;
  --color-hopeful-blue-50: #edf7fa;
  --color-hopeful-blue-100: #dfeaee;
  --color-hopeful-blue-200: #c8d7dc;
  --color-hopeful-blue-300: #a9bbc0;
  --color-hopeful-blue-400: #8da3a8;
  --color-hopeful-blue-500: #738b91;
  --color-hopeful-blue-600: #61767b;
  --color-hopeful-blue-700: #4e5e62;
  --color-hopeful-blue-800: #384548;
  --color-hopeful-blue-900: #263032;
  --color-hopeful-blue-950: #151c1e;
}

SCSS

$hopeful-blue: #a2b9bf;
$hopeful-blue-rgb: 162, 185, 191;
$hopeful-blue-light: mix(#fff, $hopeful-blue, 20%);
$hopeful-blue-dark: mix(#000, $hopeful-blue, 20%);

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