英语中并没有"蓝色"这个词。如果你想表达英语中有几种不同的蓝色，你可以说：
"There are several shades of blue in Engpsh."
你也可以用具体的色名来表达，比如：
"There are several shades of blue in Engpsh, such as sky blue, navy blue, and baby blue."
如果你想问某种颜色是否是蓝色，你可以这样问：
"Is this color blue?"
你也可以用类似的句子来表达其他颜色的数量，比如：
"There are several shades of red in Engpsh."
"There are several shades of green in Engpsh."
希望这能帮到你！