Fragile Blue

CSS

:root {
  --fragile-blue: #cfd1d3;
  --fragile-blue-rgb: 207 209 211;
  --fragile-blue-oklch: oklch(0.86 0.004 247.9);
}

.element {
  color: var(--fragile-blue);
  background-color: hsl(210 4% 82%);
  border-color: oklch(0.86 0.004 247.9);
}

Tailwind CSS v4

@theme {
  --color-fragile-blue: #cfd1d3;
  --color-fragile-blue-50: #f4f5f6;
  --color-fragile-blue-100: #e7e8e9;
  --color-fragile-blue-200: #d3d4d6;
  --color-fragile-blue-300: #b6b7b9;
  --color-fragile-blue-400: #9d9fa0;
  --color-fragile-blue-500: #848688;
  --color-fragile-blue-600: #707273;
  --color-fragile-blue-700: #5a5b5c;
  --color-fragile-blue-800: #414243;
  --color-fragile-blue-900: #2d2e2f;
  --color-fragile-blue-950: #1a1b1b;
}

SCSS

$fragile-blue: #cfd1d3;
$fragile-blue-rgb: 207, 209, 211;
$fragile-blue-light: mix(#fff, $fragile-blue, 20%);
$fragile-blue-dark: mix(#000, $fragile-blue, 20%);

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