https://www.figma.com/community/plugin/1253424530216967528/variables-import

colors.json

{
  "black": { "$type": "color", "$value": "#000000" },
  "white": { "$type": "color", "$value": "#ffffff" },
  "gray-skeleton": { "$type": "color", "$value": "#e9ecef" },
  "gray-disabled": { "$type": "color", "$value": "#adb5bd" },
  "gray-secondary": { "$type": "color", "$value": "#6c757d" },
  "blue-light": { "$type": "color", "$value": "#cfe2ff" },
  "blue-solid": { "$type": "color", "$value": "#0d6efd" },
  "blue-dark": { "$type": "color", "$value": "#052c65" },
  "green-light": { "$type": "color", "$value": "#d1e7dd" },
  "green-solid": { "$type": "color", "$value": "#198754" },
  "green-dark": { "$type": "color", "$value": "#0a3622" },
  "red-light": { "$type": "color", "$value": "#f8d7da" },
  "red-solid": { "$type": "color", "$value": "#dc3545" },
  "red-dark": { "$type": "color", "$value": "#58151c" },
  "yellow-light": { "$type": "color", "$value": "#fff3cd" },
  "yellow-solid": { "$type": "color", "$value": "#ffc107" },
  "yellow-dark": { "$type": "color", "$value": "#664d03" }
}