I found my color code on the internet, but I saw two different color names. Can I assume it is the same color?
Yes, they are the same.
Up to 30% of paint codes have multiple color names.
Toyota paint code 781 has two descriptions: Frosty Green Mica and Sea Glass Pearl
Nissan KAD has two descriptions: Gun Metallic and Graphite Shadow Metallic
However, it is important to always use the paint code when ordering your automotive touch up paint, never the color name. The same color name can be used across car manufacturers but have different paint formulas.