Hey Perfectionist,
Thank you for your question. Jan has already provided a good link to a similar question. However, as you asked for further confirmation: 
A visa is not required for many European countries provided that
  - your stay does not last longer than three months and
  - you do not take up any gainful employment.
Otherwise, a visa is required.
And here is a comprehensive list of states that refugees with a blue passport can enter without a visa:
Belgium
Denmark
Germany
Finland
France
Ireland
Iceland
Italy
Liechtenstein
Luxembourg
Malta
Netherlands
Norway
Poland
Portugal
Romania
Sweden
Switzerland (so yes, you can travel to Switzerland without a visa)
Slovakia
Spain
Czech Republic
I hope this was helpful.
Best
Baris