What color is the river in the poem Xiao He written by Ai Qing?

Blue. Ai Qing, male, formerly known as Jiang Zhenghan,No. Haicheng. He used pen names such as Ega, Kea and Linbi. In his poem The River, the river is blue. Poem excerpt: small river, green grass, white sheep on this side of the river, black and brown cattle on the other side of the river, blue sky and clear water.