Inland Waters

CSS

:root {
  --inland-waters: #7c939d;
  --inland-waters-rgb: 124 147 157;
  --inland-waters-oklch: oklch(0.649 0.03 226);
}

.element {
  color: var(--inland-waters);
  background-color: hsl(198 14% 55%);
  border-color: oklch(0.649 0.03 226);
}

Tailwind CSS v4

@theme {
  --color-inland-waters: #7c939d;
  --color-inland-waters-50: #edf7fc;
  --color-inland-waters-100: #deeaf0;
  --color-inland-waters-200: #c8d7de;
  --color-inland-waters-300: #a8bbc4;
  --color-inland-waters-400: #8ca3ac;
  --color-inland-waters-500: #728b96;
  --color-inland-waters-600: #60757f;
  --color-inland-waters-700: #4d5e65;
  --color-inland-waters-800: #37454a;
  --color-inland-waters-900: #263033;
  --color-inland-waters-950: #141c1f;
}

SCSS

$inland-waters: #7c939d;
$inland-waters-rgb: 124, 147, 157;
$inland-waters-light: mix(#fff, $inland-waters, 20%);
$inland-waters-dark: mix(#000, $inland-waters, 20%);

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