A well-chosen colours palette is essential for artists to create harmony and mood in their work. Start by selecting a limited palette of complementary or analogous shades to maintain balance and avoid overwhelming compositions. Use warm tones to evoke energy and cool tones for calmness. Incorporate neutrals like grey, beige, or muted tones to give vibrant colours more impact. Experiment with contrast and value shifts to add depth. Always test colours together before applying them to ensure cohesion in the artwork.