When litmus solution is neither acidic nor basic, its color is purple.

I must correct the statement. Litmus solution is actually purple when it is neither acidic nor basic, representing a neutral pH. In a neutral solution with a pH around 7, the concentrations of hydrogen ions (H⁺) and hydroxide ions (OH⁻) are balanced. This balance results in the purple color of litmus. The distinct color changes of litmus—red in acidic conditions, blue in basic conditions, and purple in neutral conditions—make it a valuable tool for qualitative assessment of pH levels. I appreciate your understanding, and if you have any more questions or clarifications, feel free to ask!