Summer Blue

CSS

:root {
  --summer-blue: #1880a1;
  --summer-blue-rgb: 24 128 161;
  --summer-blue-oklch: oklch(0.56 0.101 225.6);
}

.element {
  color: var(--summer-blue);
  background-color: hsl(194 74% 36%);
  border-color: oklch(0.56 0.101 225.6);
}

Tailwind CSS v4

@theme {
  --color-summer-blue: #1880a1;
  --color-summer-blue-50: #d8fcff;
  --color-summer-blue-100: #c6efff;
  --color-summer-blue-200: #a7def6;
  --color-summer-blue-300: #7ec2e0;
  --color-summer-blue-400: #55abcb;
  --color-summer-blue-500: #1f93b8;
  --color-summer-blue-600: #1f7d9c;
  --color-summer-blue-700: #19647d;
  --color-summer-blue-800: #0d4a5c;
  --color-summer-blue-900: #093340;
  --color-summer-blue-950: #001f29;
}

SCSS

$summer-blue: #1880a1;
$summer-blue-rgb: 24, 128, 161;
$summer-blue-light: mix(#fff, $summer-blue, 20%);
$summer-blue-dark: mix(#000, $summer-blue, 20%);

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