Disgusting Colors?

The word disgusting comes from the notion of inedible. That which is disgusting turns our stomachs. While certain complex, contextual phenomena are disgusting, there are simple experiences that are disgusting in and of themselves. Certain smells or tastes, for example, are just implicitly disgusting. But is this true of other types of basic experiences? Are there certain colors or shades of color that are disgusting? Are there textures that are disgusting apart from what they are a part of?