Blue Boater

CSS

:root {
  --blue-boater: #6181a3;
  --blue-boater-rgb: 97 129 163;
  --blue-boater-oklch: oklch(0.592 0.064 250.4);
}

.element {
  color: var(--blue-boater);
  background-color: hsl(211 26% 51%);
  border-color: oklch(0.592 0.064 250.4);
}

Tailwind CSS v4

@theme {
  --color-blue-boater: #6181a3;
  --color-blue-boater-50: #e9f7ff;
  --color-blue-boater-100: #d9eafd;
  --color-blue-boater-200: #c1d7f0;
  --color-blue-boater-300: #a1bad8;
  --color-blue-boater-400: #82a2c3;
  --color-blue-boater-500: #668aaf;
  --color-blue-boater-600: #577494;
  --color-blue-boater-700: #455d77;
  --color-blue-boater-800: #314458;
  --color-blue-boater-900: #212f3d;
  --color-blue-boater-950: #101c27;
}

SCSS

$blue-boater: #6181a3;
$blue-boater-rgb: 97, 129, 163;
$blue-boater-light: mix(#fff, $blue-boater, 20%);
$blue-boater-dark: mix(#000, $blue-boater, 20%);

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