Its color is dull brown, like the earth of the plains where it lives.
Of a dark color; of a color partaking of a brown and black; of a dull brown color; swarthy.
It is entirely white or the cap varies to buff, dull yellow reddish or dull brown.
The general color is dull brown or yellowish brown, and the plants are slimy in moist weather, the stem and tubes more or less dotted with dark points.
Entirely white, or cap and scales sordid buff, dull brown, or grayish in some plants.
It is about twelve inches long, with a smooth skin, and is dull brown in colour.
The females, though larger in size, have wings of a dull brown.
It looks only of a dull brown now, but when its wings are expanded its body is of a blood red colour, and its tail is forked.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "dull brown" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.