#83A6C7

CSS

:root {
  --high-tide: #83a6c7;
  --high-tide-rgb: 131 166 199;
  --high-tide-oklch: oklch(0.711 0.062 247.2);
}

.element {
  color: var(--high-tide);
  background-color: hsl(209 38% 65%);
  border-color: oklch(0.711 0.062 247.2);
}

Tailwind CSS v4

@theme {
  --color-high-tide: #83a6c7;
  --color-high-tide-50: #e8f7ff;
  --color-high-tide-100: #d9eafc;
  --color-high-tide-200: #c1d7ee;
  --color-high-tide-300: #a0bbd6;
  --color-high-tide-400: #81a2c2;
  --color-high-tide-500: #658aad;
  --color-high-tide-600: #557592;
  --color-high-tide-700: #445e75;
  --color-high-tide-800: #304557;
  --color-high-tide-900: #21303c;
  --color-high-tide-950: #101c26;
}

SCSS

$high-tide: #83a6c7;
$high-tide-rgb: 131, 166, 199;
$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);
}