What is the collective noun for colours?

There isn't a widely accepted or commonly used collective noun for colors.

Some options that might be considered, but aren't truly established, include:

* Spectrum: This refers to the entire range of colors, not just a collection of specific ones.

* Palette: While typically referring to the range of colors an artist uses, it could be used more broadly to describe a collection of colors.

* Hue: This refers to a specific shade or tint, and is not truly a collective noun.

Ultimately, it's best to use descriptive phrases to refer to a collection of colors, such as "a vibrant array of colors" or "a rich tapestry of hues."