the coulor of ruby is red
I have not heard of anything like bloods ruby. But the finest ruby colour is described as - red as pigeons blood- So may be that colour ruby is called as bloods ruby!
Ruby is a shade of the colour red or pink.
A ruby is a rare precious stone of purplish red colour.
Ruby - red
Deep red to burdgundy
The gemstone commonly called ruby is red. The colour can vary from pale to very dark red. A Corundum -the technical name for ruby- of any other colour is called a sapphire.
The normal colour is a nice see through purple colour.
Red, ruby.
red
In books usual Gold.
Blue