This is the point where I'd love to place a link of what Mum does - she is the BEST at colours! - but her website is under construction... I promise I'll show you as soon as it's ready!
Ok, I'm bragging, but... look at my score!
The trick is to put the colours in order so that you don't see a difference between two that are right next to each other...
Wanna try it yourself? Do it here and let me know how you did - I promise I won't be condescending nor brag anymore about how amazing my score was.
Pffhehehe... silly me.