When you see a rainbow, what feeling does it give you? ... and I know we aren't too old for them because, the gram these days - has just as much rainbow posts as 'bring back summer kini pics'. Despite colour wheels suggesting the colour psychology behind different colours, every colour gives someone a slightly different sensation. We hold memories and emotions to colour and that's a colourful thing. Slash - how boring to tell someone that red is supposed to make you feel caut