Heart Chakra colour change? [1]

Hi Everyone, best wishes and love to you all.

Does anyone known whether our Heart Chakras can change colour? Mine has always been seen as green but in the past week it has changed to a white/cream/light gold colour. I try and concentrate on seeing it green but it won't change. It moves/whirls/grows as usual but won't be green as before. I don't understand.

Just for background: I seem to be going from strength to strength. It's all speeding up. The vibrations in my body are there about 70% of the day. etc etc. not experienced 'down' or sad symptoms. 

If anyone knows, I'd be grateful for any info on what is happening to my heart chakra as I can't fathom it.

Bless you all. Thank you.

Mandy