Related Clues:
- Head about to permit a range of colours
- Nuanced color
- Artist's shade
- Board allowed to block head
- Board with a thumbhole
- Any of the 50 shades of gray, say
- Tone no good in giant
- Copper or bronze
- Color-chart listing
- Artist's colorful board
- Pink, for example
- Artist's paint mixing board
- Spread around permitted range of colours
- Color-mixing board
- Studio item with a thumbhole