This game got me hooked playing for almost 2 minutes. Which is 1minutes and 30 seconds longer than I usually spend on a game made within 3 hours. Good job.

I wonder if it would be even more difficult if the background music was not so calm and relaxing (this is just a though, not critique, I liked the music as well)

This was mind bending for sure! Very tough to see yourself make a mistake :D But it is very addicting! Nice work. I like that you have made 3 options - color of a word, color of a button and the word itself! Usually it's 2 options.