Highlighter Blue

CSS

:root {
  --highlighter-blue: #3aafdc;
  --highlighter-blue-rgb: 58 175 220;
  --highlighter-blue-oklch: oklch(0.709 0.12 228.2);
}

.element {
  color: var(--highlighter-blue);
  background-color: hsl(197 70% 55%);
  border-color: oklch(0.709 0.12 228.2);
}

Tailwind CSS v4

@theme {
  --color-highlighter-blue: #3aafdc;
  --color-highlighter-blue-50: #d3fcff;
  --color-highlighter-blue-100: #c0f0ff;
  --color-highlighter-blue-200: #9edffe;
  --color-highlighter-blue-300: #72c3e9;
  --color-highlighter-blue-400: #40acd6;
  --color-highlighter-blue-500: #0094c4;
  --color-highlighter-blue-600: #007da6;
  --color-highlighter-blue-700: #006485;
  --color-highlighter-blue-800: #004a62;
  --color-highlighter-blue-900: #003345;
  --color-highlighter-blue-950: #001f2d;
}

SCSS

$highlighter-blue: #3aafdc;
$highlighter-blue-rgb: 58, 175, 220;
$highlighter-blue-light: mix(#fff, $highlighter-blue, 20%);
$highlighter-blue-dark: mix(#000, $highlighter-blue, 20%);

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