Blue Nuthatch

CSS

:root {
  --blue-nuthatch: #88a4ae;
  --blue-nuthatch-rgb: 136 164 174;
  --blue-nuthatch-oklch: oklch(0.701 0.034 221.5);
}

.element {
  color: var(--blue-nuthatch);
  background-color: hsl(196 19% 61%);
  border-color: oklch(0.701 0.034 221.5);
}

Tailwind CSS v4

@theme {
  --color-blue-nuthatch: #88a4ae;
  --color-blue-nuthatch-50: #ebf8fc;
  --color-blue-nuthatch-100: #dcebf0;
  --color-blue-nuthatch-200: #c5d8df;
  --color-blue-nuthatch-300: #a5bcc4;
  --color-blue-nuthatch-400: #89a3ad;
  --color-blue-nuthatch-500: #6e8c96;
  --color-blue-nuthatch-600: #5d767f;
  --color-blue-nuthatch-700: #4a5f66;
  --color-blue-nuthatch-800: #35454b;
  --color-blue-nuthatch-900: #243034;
  --color-blue-nuthatch-950: #131c1f;
}

SCSS

$blue-nuthatch: #88a4ae;
$blue-nuthatch-rgb: 136, 164, 174;
$blue-nuthatch-light: mix(#fff, $blue-nuthatch, 20%);
$blue-nuthatch-dark: mix(#000, $blue-nuthatch, 20%);

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