difference between green and yellow npcs?

[ganjafiut]

some are green and some are yellow on the map, does green mean more friendly to me?

[Godwoken Dovahkiin]

Green = Friendly
Yellow = Neutral

Yellow goes aggro if you attack them.

[NamThunder]

Green is friendly. They won't attack you for any reason
Yellow is neutral. Most would leave you be unless provoked, but some will turn hostile if they spotted you or you triggered something to cause them to become hostile.

[ganjafiut]

thanks