Question

while gold was the recurrent color, the palette also included shades of pink, blue, and taupe before moving onto darker tones.
in the sentence above, tones has the same or almost the same meaning as: characters hues signals sounds

Explanation:

In the context of colors in the palette, "tones" refers to different variations of color, just like "hues" which also denote color - related shades. "Characters" are related to letters or qualities of a person, "signals" are signs or indications, and "sounds" are auditory sensations, none of which are related to color like "tones" in this context.

Answer:

B. hues