Which colour is most suitable for creating an icy scene?

Correct answer: Blue

Colour theory uses cool colours to suggest low temperature, distance, shade, and stillness. Blue is therefore the most suitable choice for an icy scene because it commonly evokes ice, cold water, frost, and a chilly atmosphere. Red, orange, and yellow are warm colours that usually suggest heat, fire, sunlight, or activity. Thus, option D best communicates the intended visual mood.