Mellow Blue

CSS

:root {
  --mellow-blue: #d7e2dd;
  --mellow-blue-rgb: 215 226 221;
  --mellow-blue-oklch: oklch(0.903 0.014 167.1);
}

.element {
  color: var(--mellow-blue);
  background-color: hsl(153 16% 86%);
  border-color: oklch(0.903 0.014 167.1);
}

Tailwind CSS v4

@theme {
  --color-mellow-blue: #d7e2dd;
  --color-mellow-blue-50: #f2f6f4;
  --color-mellow-blue-100: #e4e9e7;
  --color-mellow-blue-200: #cfd6d3;
  --color-mellow-blue-300: #b1bab6;
  --color-mellow-blue-400: #97a19d;
  --color-mellow-blue-500: #7e8984;
  --color-mellow-blue-600: #6b7470;
  --color-mellow-blue-700: #555d59;
  --color-mellow-blue-800: #3e4441;
  --color-mellow-blue-900: #2b2f2d;
  --color-mellow-blue-950: #181b1a;
}

SCSS

$mellow-blue: #d7e2dd;
$mellow-blue-rgb: 215, 226, 221;
$mellow-blue-light: mix(#fff, $mellow-blue, 20%);
$mellow-blue-dark: mix(#000, $mellow-blue, 20%);

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