Colors that have red such as orange, redish-brown and yellow are assumed to be warm colors because we associate these with sunlight.
有红色的颜色，如橙色、红褐色和黄色，被认为是暖色，因为我们认为这些色彩与阳光相似。
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On the other hand if you take a look at the shadow on the wall beneath the wood roofs, those appear brownish/redish because the light from the wood gets reflected on the wall and tints it that color.