dark blue, deep green

蒼 is composed of the grass radical 艸 (grass) and 倉 (warehouse). 艸 is a pictograph of grass, evoking a lush green color, while 倉 represents a granary or a place where items are gathered, conveying the idea of collection or density. When green grass grows densely together, its color deepens into a dark, rich blue-green or gray-green. Thus, 蒼 uses these components to represent deep green, azure, or grayish color tones.