Heroic Blue

CSS

:root {
  --heroic-blue: #1166ff;
  --heroic-blue-rgb: 17 102 255;
  --heroic-blue-oklch: oklch(0.565 0.239 261.6);
}

.element {
  color: var(--heroic-blue);
  background-color: hsl(219 100% 53%);
  border-color: oklch(0.565 0.239 261.6);
}

Tailwind CSS v4

@theme {
  --color-heroic-blue: #1166ff;
  --color-heroic-blue-50: #d2f5ff;
  --color-heroic-blue-100: #bfe8ff;
  --color-heroic-blue-200: #9fd2ff;
  --color-heroic-blue-300: #76b2ff;
  --color-heroic-blue-400: #4795ff;
  --color-heroic-blue-500: #1474ff;
  --color-heroic-blue-600: #1563f3;
  --color-heroic-blue-700: #1150c4;
  --color-heroic-blue-800: #003b93;
  --color-heroic-blue-900: #002968;
  --color-heroic-blue-950: #001548;
}

SCSS

$heroic-blue: #1166ff;
$heroic-blue-rgb: 17, 102, 255;
$heroic-blue-light: mix(#fff, $heroic-blue, 20%);
$heroic-blue-dark: mix(#000, $heroic-blue, 20%);

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