Bright Blue

CSS

:root {
  --bright-blue: #0165fc;
  --bright-blue-rgb: 1 101 252;
  --bright-blue-oklch: oklch(0.559 0.238 260.8);
}

.element {
  color: var(--bright-blue);
  background-color: hsl(216 99% 50%);
  border-color: oklch(0.559 0.238 260.8);
}

Tailwind CSS v4

@theme {
  --color-bright-blue: #0165fc;
  --color-bright-blue-50: #d1f6ff;
  --color-bright-blue-100: #bee8ff;
  --color-bright-blue-200: #9dd3ff;
  --color-bright-blue-300: #74b2ff;
  --color-bright-blue-400: #4396ff;
  --color-bright-blue-500: #0575ff;
  --color-bright-blue-600: #0c64f2;
  --color-bright-blue-700: #0a50c3;
  --color-bright-blue-800: #003b92;
  --color-bright-blue-900: #002968;
  --color-bright-blue-950: #001548;
}

SCSS

$bright-blue: #0165fc;
$bright-blue-rgb: 1, 101, 252;
$bright-blue-light: mix(#fff, $bright-blue, 20%);
$bright-blue-dark: mix(#000, $bright-blue, 20%);

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