What can I do to make these faded black jeans wearable again?

I have these jeans that are in good condition and fit me perfectly, which is rare in jeans. However due to rain and sunlight they've faded to an unsightly green. Seeing as it may be hard for me to find a pair of jeans that fit this well again, is there anyway I can restore the colour or preferably change them to another colour that isn't as ugly as the colour they are now?