Genteel Blue

CSS

:root {
  --genteel-blue: #698eb3;
  --genteel-blue-rgb: 105 142 179;
  --genteel-blue-oklch: oklch(0.633 0.07 249);
}

.element {
  color: var(--genteel-blue);
  background-color: hsl(210 33% 56%);
  border-color: oklch(0.633 0.07 249);
}

Tailwind CSS v4

@theme {
  --color-genteel-blue: #698eb3;
  --color-genteel-blue-50: #e7f7ff;
  --color-genteel-blue-100: #d7eaff;
  --color-genteel-blue-200: #bfd7f2;
  --color-genteel-blue-300: #9ebbdb;
  --color-genteel-blue-400: #7fa2c6;
  --color-genteel-blue-500: #618ab3;
  --color-genteel-blue-600: #537597;
  --color-genteel-blue-700: #425e79;
  --color-genteel-blue-800: #2e4559;
  --color-genteel-blue-900: #1f303e;
  --color-genteel-blue-950: #0f1c28;
}

SCSS

$genteel-blue: #698eb3;
$genteel-blue-rgb: 105, 142, 179;
$genteel-blue-light: mix(#fff, $genteel-blue, 20%);
$genteel-blue-dark: mix(#000, $genteel-blue, 20%);

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