Orange and teal are two colours that look nice together. They're complimentary. The movie industry figured this out a while ago and now we're starting to see entire films colour "corrected" to be just orange and teal (see 'The Island' by Michael Bay for an example) but games are starting to follow this path.
This tumblr exists to document games that rely on the old teal and orange look for their key art and packaging. We may post the occasional screenshot if it is super blatant.
You can read more about the crusade of orange and teal on the film industry here: