While lilies are a frequent motif in Renaissance art, they are generally associated with purity, innocence, and the Virgin Mary. The color of the lily, however, does not typically hold a distinct symbolic meaning within that context.
It's important to note that:
* Symbolism in art can be complex and open to interpretation.
* Art historians often analyze the context of the painting and the specific details to determine meaning.
To understand the significance of orange lilies in a specific Hugo van der Goes painting, we would need to know the name of the work and analyze its details.
If you have a specific painting in mind, please provide the name or a description, and I can help you explore its meaning.