#EAE9E2

CSS

:root {
  --gin-tonic: #eae9e2;
  --gin-tonic-rgb: 234 233 226;
  --gin-tonic-oklch: oklch(0.933 0.009 100);
}

.element {
  color: var(--gin-tonic);
  background-color: hsl(53 16% 90%);
  border-color: oklch(0.933 0.009 100);
}

Tailwind CSS v4

@theme {
  --color-gin-tonic: #eae9e2;
  --color-gin-tonic-50: #f5f5f2;
  --color-gin-tonic-100: #e8e8e4;
  --color-gin-tonic-200: #d5d4d0;
  --color-gin-tonic-300: #b8b8b2;
  --color-gin-tonic-400: #9f9f98;
  --color-gin-tonic-500: #87867f;
  --color-gin-tonic-600: #73726c;
  --color-gin-tonic-700: #5c5b56;
  --color-gin-tonic-800: #43423f;
  --color-gin-tonic-900: #2e2e2b;
  --color-gin-tonic-950: #1b1b19;
}

SCSS

$gin-tonic: #eae9e2;
$gin-tonic-rgb: 234, 233, 226;
$gin-tonic-light: mix(#fff, $gin-tonic, 20%);
$gin-tonic-dark: mix(#000, $gin-tonic, 20%);

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