Violet:
- Violet represents artificiality and something that is not natural or genuine. In this context, it might symbolize the unnaturalness of the world where natural things are lacking.
Fading:
- Fading is associated with the loss of color and vitality. In the poem, it could symbolize the fading away of life or the gradual decline of something.
Green:
- Green is not explicitly mentioned in the given excerpt, but it's often associated with nature, growth, and life. Its absence could further emphasize the lack of natural elements and the dominance of the unnatural.
Black:
- Black is mentioned in the Spanish version of the poem as "negra," which means "black" or "dark." It could symbolize darkness, mystery, or even death, contrasting with the vibrancy of natural colors.
White:
- White is also not mentioned in the given excerpt but is often associated with purity, innocence, and light. Its presence or absence could convey different meanings depending on the context.
Overall, the poem uses colors as symbols to depict the contrast between natural and unnatural things and to explore themes related to life, death, and the loss of authenticity in the face of artificiality.