Summary
Appropriate naming and selection of red, yellow, green, and blue (focal) hues and of eight intermediate hues, and relationships between them, increase with age of 3-, 4-, and 5-year-old nursery-school children. Training to name focal hues does not influence naming, selection, or relationships between them. Ordering also increases with age, but appropriate placements are relatively infrequent, inconsistent, and not related to naming and selection.