example.json

{
  "product": { 
    "regions": [
      {
        "vendor-ids": [
          2098
        ], 
        "subcategories": [
          {
            "attributes": [
              {
                "attr-type": "prices", 
                "max-price": "$8.40", 
                "name": "Prices", 
                "min-price": "$8.40"
              }, 
              {
                "attr-type": "shipping", 
                "name": "Shipping", 
                "min-price": "$4.24"
              }, 
              {
                "id": "AA9081EC-37A3-43C5-A9D0-9BEC266E77AD", 
                "name": "Colors", 
                "attr-type": "two-color-list",
                "values": [
                  {
                    "hex": [
                      "#ffffff", 
                      "#000000"
                    ], 
                    "id": "C477A809-40CD-4BB4-9C30-A650B61CBFA8", 
                    "name": "White with Black Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#211261"
                    ], 
                    "id": "379316B4-CCD0-41CA-8B67-C857D2C681E6", 
                    "name": "White with Blue Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#00594E"
                    ], 
                    "id": "E5231B2C-DDD1-4F24-9147-8859428D9084", 
                    "name": "White with Green Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#e14504"
                    ], 
                    "id": "5326761D-EC5E-4D85-878A-64725530D745", 
                    "name": "White with Orange Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#e5aaba"
                    ], 
                    "id": "F1B92AF2-7523-459E-BA76-491C9D941D5A", 
                    "name": "White with Pink Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#c20430"
                    ], 
                    "id": "70AAD8E6-0A49-44B9-86E1-FA7984803FAE", 
                    "name": "White with Red Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#dbc657"
                    ], 
                    "id": "92CE80A4-934B-49BB-9A52-9C37DB51BCDA", 
                    "name": "White with Yellow Accents"
                  }
                ] 
              }, 
              {
                "values": [
                  {
                    "name": "11 oz"
                  }
                ], 
                "name": "Sizes", 
                "attr-type": "list"
              }, 
              {
                "values": [
                  {
                    "name": "Ceramic"
                  }
                ], 
                "name": "Material", 
                "attr-type": "list"
              }, 
              {
                "values": [
                  {
                    "name": "Full wrap with border"
                  }
                ], 
                "name": "Image size", 
                "attr-type": "list"
              }, 
              {
                "values": [
                  {
                    "name": "Microwave and dishwasher safe"
                  }
                ], 
                "name": "Care of", 
                "attr-type": "list"
              }, 
              {
                "values": [
                  {
                    "name": "Packaged in a corrugated box which ensures safe drop shipping to your customers."
                  }
                ], 
                "name": "Packaging", 
                "attr-type": "list"
              }, 
              {
                "values": [
                  {
                    "name": "4 days"
                  }
                ], 
                "name": "Production time", 
                "attr-type": "list"
              }
            ]
          }
        ], 
        "name": "US & Canada", 
        "desc": "Shipping to US & Canada from US facilities.\n"
      }, 
      {
        "vendor-ids": [
          2098
        ], 
        "subcategories": [
          {
            "attributes": [
              {
                "attr-type": "prices", 
                "max-price": "$8.40", 
                "name": "Prices", 
                "min-price": "$8.40"
              }, 
              {
                "attr-type": "shipping", 
                "name": "Shipping", 
                "min-price": "$4.24"
              }, 
              {
                "id": "AA9081EC-37A3-43C5-A9D0-9BEC266E77AD", 
                "name": "Colors", 
                "attr-type": "two-color-list",
                "values": [
                  {
                    "hex": [
                      "#ffffff", 
                      "#000000"
                    ], 
                    "id": "C477A809-40CD-4BB4-9C30-A650B61CBFA8", 
                    "name": "White with Black Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#211261"
                    ], 
                    "id": "379316B4-CCD0-41CA-8B67-C857D2C681E6", 
                    "name": "White with Blue Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#00594E"
                    ], 
                    "id": "E5231B2C-DDD1-4F24-9147-8859428D9084", 
                    "name": "White with Green Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#e14504"
                    ], 
                    "id": "5326761D-EC5E-4D85-878A-64725530D745", 
                    "name": "White with Orange Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#e5aaba"
                    ], 
                    "id": "F1B92AF2-7523-459E-BA76-491C9D941D5A", 
                    "name": "White with Pink Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#c20430"
                    ], 
                    "id": "70AAD8E6-0A49-44B9-86E1-FA7984803FAE", 
                    "name": "White with Red Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#c20430"
                    ], 
                    "id": "70AAD8E6-0A49-44B9-86E1-FA7984803FAE", 
                    "name": "White with Neon Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#c20430"
                    ], 
                    "id": "70AAD8E6-0A49-44B9-86E1-FA7984803FAE", 
                    "name": "White with Gold Accents"
                  }, 
                  {
                    "hex": [
                      "#ffffff", 
                      "#dbc657"
                    ], 
                    "id": "92CE80A4-934B-49BB-9A52-9C37DB51BCDA", 
                    "name": "White with Yellow Accents"
                  }
                ]
              }, 
              {
                "values": [
                  {
                    "name": "11 oz"
                  }
                ], 
                "name": "Sizes", 
                "attr-type": "list"
              }, 
              {
                "values": [
                  {
                    "name": "Ceramic"
                  }
                ], 
                "name": "Material", 
                "attr-type": "list"
              }, 
              {
                "values": [
                  {
                    "name": "Full wrap with border"
                  }
                ], 
                "name": "Image size", 
                "attr-type": "list"
              }, 
              {
                "values": [
                  {
                    "name": "Microwave and dishwasher safe"
                  }
                ], 
                "name": "Care of", 
                "attr-type": "list"
              }, 
              {
                "values": [
                  {
                    "name": "Packaged in a corrugated box which ensures safe drop shipping to your customers."
                  }
                ], 
                "name": "Packaging", 
                "attr-type": "list"
              }, 
              {
                "values": [
                  {
                    "name": "4 days"
                  }
                ], 
                "name": "Production time", 
                "attr-type": "list"
              }
            ]
          }
        ], 
        "name": "EU", 
        "desc": "Shipping to EU from EU facilities.\n"
      }
    ]
  }
}

parser.js

require 'json'

json = JSON.parse(File.read('./example.json'))

def collect_colors(json)
  json["product"]["regions"].flat_map {|region| region["subcategories"].flat_map {|sc| sc["attributes"]}}.
    #reduce([]) {|acc, json| acc.push(json.select {|json| json["name"] == "Colors" }) if acc.select {|colors| colors }}
    select {|attrs| attrs["name"] == "Colors" }
end

colors = collect_colors(json)

p colors