It's a colour (color) somewhere between red and brown.
myoglobin gives the muscles the reddish brown color
reddish-brown
reddish brown
Greeny brown
They are usually reddish brown in color.
Reddish brown was her hair color.
A reddish brown tom.
reddish brown
they are reddish brown or grey
Auburn
It is a reddish-brown.
reddish brown