These receptacles, typically made of metal or plastic, hold solidified watercolor paints. Individual units allow artists to organize, customize, and replenish their palettes as needed. They are commonly found in standard sizes to fit within watercolor palettes, offering a modular approach to color management.
The use of individual color holders offers several advantages. Artists can create personalized color schemes, replacing depleted colors individually rather than purchasing entire sets. The arrangement and portability facilitated by these tools are also highly beneficial, contributing to efficient studio practice and plein air painting. Their design supports the long-term preservation of watercolor paints, preventing premature drying and contamination.