- A red rag to a bull
- As black as Newgate's knocker
- As brown as a berry
- As white as snow
- Baby blues
- Black sheep of the family
- Black-on-black
- Blonde bombshell
- Blue blood
- Blue-plate special
- Bolt from the blue
- Born with a silver spoon in one's mouth
- Browned off
- Brownie points
- Carte blanche
- Caught red-handed
- Coat of many colours
- Colour up
- Copper-bottomed
- Cordon bleu
- Devil and the deep blue sea
- Driving while black
- Every cloud has a silver lining
- Green-eyed monster
- In the pink
- In the red
- It came like a bolt from the blue
- Jet black
- Join the colours
- Once in a blue moon
- Paint the town red
- Purple patch
- Raspberry tart
- Red herring
- Red in tooth and claw
- Red letter day
- Red sky at night …
- Red tape
- Red-handed
- Richard of York gave battle in vain
- Rub of the green
- See red
- Shrinking violet
- Silver bullet
- Something old, something new, something borrowed, something blue
- The grass is always greener on the other side of the fence
- The Yellow Peril
- Tickled pink
- True blue
- Wave a red rag to a bull
- Yellow-belly
- You'll wonder where the yellow went when you brush your teeth with Pepsodent