[
  {
    "id": 584,
    "name": "Ancient Silver",
    "base_rgb": [
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    ],
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      "contrast": 1.5625,
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      "saturation": 0.273438,
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    "metal": {
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      "rgb": [
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    "fur": {
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    },
    "item": 20647,
    "categories": [
      "Yellow",
      "Vibrant",
      "Rare"
    ]
  }
]