When talking about paint colours, which one of these colours is considered "cold", "warm" or "both". Both meaning the way the colour is perceived depends on the colours surrounding it.
Yellow, Yellow-Orange, Orange, Red-Orange, Red, Red-Violet, Violet, Blue-Violet, Blue, Blue-Green, Green, Yellow-Green

Warm: Yellow, Yellow-Orange, Orange, Red-Orange, Red
Cold: Violet, Blue-Violet, Blue, Blue-Green, Green
Both: Red-Violet, Yellow-Green