Colors
Colors in dreams can carry various metaphorical meanings depending on the specific color and the context in which it appears. Colors are used in dreams to classify your beliefs, emotions, and behaviors. Consider how vibrant, dark, or dull the colors are. Consider the specific shade of a color to reflect a specific type of feelings.
See the themes section for color for a more in depth look at color symbolism.
To dream of colors may represent your feelings about how interesting something is.
To dream of colors turning into sounds represents experiences of seeing how something interesting you experienced changed into new feelings about it afterwards. A new experience that you feel is interesting that converting into feelings you've never had before when you finally experience it yourself. Hallucinogenic drugs are known to make colors turn into sounds and this may be because it's a symbol for how interesting taking a hallucinogenic is to experience the first time followed by liking talking to people about personal experiences with hallucinogenics afterwards.
To dream of sounds turning into colors represents awareness of how something feels making you think about it becoming interesting. Hallucinogenic drugs are known to make sounds turn into colors and this may be because it's a symbol for hearing about hallucinogenic drugs from someone else that makes you take them yourself to discover how interesting they are.