Blue to the Bone

CSS

:root {
  --blue-to-the-bone: #0190c0;
  --blue-to-the-bone-rgb: 1 144 192;
  --blue-to-the-bone-oklch: oklch(0.613 0.123 231);
}

.element {
  color: var(--blue-to-the-bone);
  background-color: hsl(195 99% 38%);
  border-color: oklch(0.613 0.123 231);
}

Tailwind CSS v4

@theme {
  --color-blue-to-the-bone: #0190c0;
  --color-blue-to-the-bone-50: #d3fcff;
  --color-blue-to-the-bone-100: #c0f0ff;
  --color-blue-to-the-bone-200: #9fdeff;
  --color-blue-to-the-bone-300: #73c2ec;
  --color-blue-to-the-bone-400: #41abda;
  --color-blue-to-the-bone-500: #0093c8;
  --color-blue-to-the-bone-600: #007ca9;
  --color-blue-to-the-bone-700: #006488;
  --color-blue-to-the-bone-800: #004a64;
  --color-blue-to-the-bone-900: #003346;
  --color-blue-to-the-bone-950: #001e2e;
}

SCSS

$blue-to-the-bone: #0190c0;
$blue-to-the-bone-rgb: 1, 144, 192;
$blue-to-the-bone-light: mix(#fff, $blue-to-the-bone, 20%);
$blue-to-the-bone-dark: mix(#000, $blue-to-the-bone, 20%);

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