I was given a few cobalt blue swing-top bottles. I know that green bottles don't filter light sufficiently and run the chance of skunked beer, but that brown glass is good. What about blue glass?
There was an article written by Bradley E. Sturgeon on the effects of UV light and the color of the glass bottle you are using. Here is the link to the article. It includes a graph with some relevant info. In short brown is still the best.
Just to summarize the article...here are the charts associated with the different types of light used, and the light filtered by the different types of glass used.
Tungsten light bulb:
Quote from recommendation section of the article:"Continue to use brown bottles for all homebrew!"
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