#85A9CD

CSS

:root {
  --high-tide: #85a9cd;
  --high-tide-rgb: 133 169 205;
  --high-tide-oklch: oklch(0.721 0.066 248.8);
}

.element {
  color: var(--high-tide);
  background-color: hsl(210 42% 66%);
  border-color: oklch(0.721 0.066 248.8);
}

Tailwind CSS v4

@theme {
  --color-high-tide: #85a9cd;
  --color-high-tide-50: #e8f7ff;
  --color-high-tide-100: #d8eafe;
  --color-high-tide-200: #c0d7f0;
  --color-high-tide-300: #9fbad9;
  --color-high-tide-400: #80a2c4;
  --color-high-tide-500: #638ab0;
  --color-high-tide-600: #547595;
  --color-high-tide-700: #435d77;
  --color-high-tide-800: #2f4558;
  --color-high-tide-900: #202f3e;
  --color-high-tide-950: #101c27;
}

SCSS

$high-tide: #85a9cd;
$high-tide-rgb: 133, 169, 205;
$high-tide-light: mix(#fff, $high-tide, 20%);
$high-tide-dark: mix(#000, $high-tide, 20%);

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