#F5F5EF

CSS

:root {
  --morning-snow: #f5f5ef;
  --morning-snow-rgb: 245 245 239;
  --morning-snow-oklch: oklch(0.968 0.008 106.5);
}

.element {
  color: var(--morning-snow);
  background-color: hsl(60 23% 95%);
  border-color: oklch(0.968 0.008 106.5);
}

Tailwind CSS v4

@theme {
  --color-morning-snow: #f5f5ef;
  --color-morning-snow-50: #f5f5f3;
  --color-morning-snow-100: #e8e8e5;
  --color-morning-snow-200: #d4d4d1;
  --color-morning-snow-300: #b7b8b3;
  --color-morning-snow-400: #9f9f99;
  --color-morning-snow-500: #878781;
  --color-morning-snow-600: #72726d;
  --color-morning-snow-700: #5b5b57;
  --color-morning-snow-800: #43423f;
  --color-morning-snow-900: #2e2e2c;
  --color-morning-snow-950: #1b1b19;
}

SCSS

$morning-snow: #f5f5ef;
$morning-snow-rgb: 245, 245, 239;
$morning-snow-light: mix(#fff, $morning-snow, 20%);
$morning-snow-dark: mix(#000, $morning-snow, 20%);

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