What colors are posinies spiders?

Poisonous Spiders are many different colors.

The Black Widow is as the name states black with a red hourglass on the bottom of the abdomen.

The Brown Widow is a light to dark brown spider that looks like the Black Widow only with patterns of brown. It too has a red hourglass on the bottom of the abdomen.

The Brown Recluse Spider too is brown like the name states with a darker brown 'violin' marking on the cephalothorax.

The Hobo spider is light brown with a darker brown abdomen and a cream colored strip going down the center of the cephalothorax.

Yellow Sack Spiders are usually yellow or creamy colored.

The Brazilian Wandering Spider is a dark brown spider and usually have red hairs on their chelicerae.