chromium/ios/chrome/common/ui/colors/resources/Assets.xcassets/grey_400_color.colorset/Contents.json

{
  "info" : {
    "version" : 1,
    "author" : "xcode"
  },
  "colors" : [
    {
      "idiom" : "universal",
      "color" : {
        "color-space" : "display-p3",
        "components" : {
          "alpha" : "1.000",
          "red" : "0xBD",
          "green" : "0xC1",
          "blue" : "0xC6"
        }
      }
    },
    {
      "idiom" : "universal",
      "appearances" : [
        {
          "appearance" : "luminosity",
          "value" : "dark"
        }
      ],
      "color" : {
        "color-space" : "display-p3",
        "components" : {
          "alpha" : "1.000",
          "red" : "0x9A",
          "green" : "0xA0",
          "blue" : "0xA6"
        }
      }
    }
  ]
}