Is there a way to change a already bought can of paints color?

a little context first
my dad bought a house , to fix up , and then house one of his kids in it .. (he has 5 of us total ) and this house is on its way to being done , my sister was the one who was going to move into it , but decided she didnt wanna move there any more , soo .. im moving in there in the next few months instead ....

the problem is , she already bought paint for one of the rooms .. it was on sale , and it is a UGLY pale blueish green .. and its just not my style ... way to light for my taste ... im more about rich vibrant colors .. or even natural tones ...

so ... is there a way , to change a can of paints color .. from this ugly pale blueish green , to a different color .. like .. a rich brown , or something way prettier ... so this paint dont have to be wasted ?
and if there is a way , what do I use to change the color ?

i know I may seem picky .. but this is going to be the first time im living on my own , and I want my house to be pleasing to my eyes , otherwise im not going to be as happy ... and to me thats a pretty big deal ...
Asked Dec 14, 2015

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