Ancient yellow-green color

Quick answer：

Ancient yellow-green colors were often derived from natural sources such as minerals and plants. In traditional Chinese art, for example, a pigment known as 'liu qing' (琉璃青) was used, which is a yellow-green glaze. Similarly, in various ancient cultures, pigments like azurite (for blue-green tones) and malachite (for green) were commonly used. These colors had symbolic meanings and were valued for their vibrancy and rarity.