"October's bright blue weather"
"a blue flame"
"blue haze of tobacco smoke"
颜色是类似蓝色的那种。
Sarcasticmistery: so they are blueish greenish.所以它们是蓝绿色的。
Then using the blueish color I added nuances to simulate an undulating look.然后使用偏蓝的白来增加一些细微的差异,从而模拟起伏的地形。