#F7F9F5

CSS

:root {
  --white-porcelain: #f7f9f5;
  --white-porcelain-rgb: 247 249 245;
  --white-porcelain-oklch: oklch(0.979 0.006 128.5);
}

.element {
  color: var(--white-porcelain);
  background-color: hsl(90 25% 97%);
  border-color: oklch(0.979 0.006 128.5);
}

Tailwind CSS v4

@theme {
  --color-white-porcelain: #f7f9f5;
  --color-white-porcelain-50: #f4f5f4;
  --color-white-porcelain-100: #e7e8e6;
  --color-white-porcelain-200: #d3d5d2;
  --color-white-porcelain-300: #b6b8b5;
  --color-white-porcelain-400: #9d9f9b;
  --color-white-porcelain-500: #858783;
  --color-white-porcelain-600: #70726f;
  --color-white-porcelain-700: #5a5b59;
  --color-white-porcelain-800: #424341;
  --color-white-porcelain-900: #2d2e2d;
  --color-white-porcelain-950: #1a1b1a;
}

SCSS

$white-porcelain: #f7f9f5;
$white-porcelain-rgb: 247, 249, 245;
$white-porcelain-light: mix(#fff, $white-porcelain, 20%);
$white-porcelain-dark: mix(#000, $white-porcelain, 20%);

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