My bedroom is actually light yellow at the moment. And when I took a "aura test" one time on the internet, the results were yellow too.
In my natal chart I have gemini AC and stellium of 3 personal planets in virgo. So I guess mercury is important in my chart.
My relationship with my last boyfriend ended not long ago, I broke up. But I still felt very bad about it. So maybe thats why my heart chakra was dark? But its getting better every day.