Rainier Blue

CSS

:root {
  --rainier-blue: #558484;
  --rainier-blue-rgb: 85 132 132;
  --rainier-blue-oklch: oklch(0.58 0.051 195.8);
}

.element {
  color: var(--rainier-blue);
  background-color: hsl(180 22% 43%);
  border-color: oklch(0.58 0.051 195.8);
}

Tailwind CSS v4

@theme {
  --color-rainier-blue: #558484;
  --color-rainier-blue-50: #e5fafa;
  --color-rainier-blue-100: #d5eeee;
  --color-rainier-blue-200: #bcdbdc;
  --color-rainier-blue-300: #9ac0c1;
  --color-rainier-blue-400: #7ba8a8;
  --color-rainier-blue-500: #5c9191;
  --color-rainier-blue-600: #4f7b7b;
  --color-rainier-blue-700: #3f6262;
  --color-rainier-blue-800: #2d4847;
  --color-rainier-blue-900: #1e3231;
  --color-rainier-blue-950: #0e1e1d;
}

SCSS

$rainier-blue: #558484;
$rainier-blue-rgb: 85, 132, 132;
$rainier-blue-light: mix(#fff, $rainier-blue, 20%);
$rainier-blue-dark: mix(#000, $rainier-blue, 20%);

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