Say hello to color theory (a way to determine the best colors to wear for fair skin ... undertones are cool, warm or neutral, ...

It’s been the trending colour of the season, but butter yellow is a notoriously difficult shade to pull off. Not only does it accentuate your skin’s undertones, it can totally change in appearance ...

Kelly's team uses a method they call the "Perfect Palette" to help shoppers figure out which hues they might want to wear or shy away from. "By determining your skin undertone, eye color ...

So, celebrity fashion experts and colour analysts give their hacks for wearing butter yellow – suiting all skin tones and hair colours. Are you cool or warm-toned ... £30How to wear it ...

"If you have warm skin tone ... overpowering the softness of the hue," she says. How to wear it depending on your hair colour Skin tone is one thing, but hair colour can also totally change ...