Ancient Chinese descriptions of colors often incorporate poetic and metaphorical language, reflecting the cultural significance and aesthetic values associated with different hues. For instance, red is often associated with prosperity and happiness, represented by terms like 'cherry red' (xuân hóng) or 'crimson' (hóng sè). Blue, on the other hand, symbolizes tranquility and wisdom, with terms such as 'sky blue' (tiān sè) or 'indigo' (nǐu sè). Green is linked to nature and longevity, known as 'verdant' (lǜ sè) or 'emerald' (bào lǜ). Yellow, traditionally the color of the emperor and royalty, is called 'emperor yellow' (huáng sè). These descriptions provide insight into the rich symbolism and cultural heritage of ancient Chinese aesthetics.