Is300 Cascade Blue And Indigo Ink Pearl?

[Headache]

Hey all I own a blue Is300 and after ringing Lexus yesterday to get A new part I gave the bloke my vin number for A colour match and apparently it's cascade blue,

But I have been looking around other forums from the US and my colour code is apparently Indigo Ink pearl :S And I was abit confused, Is this the same colour and Lexus Australia it's just A different name.

Thanks that colur code is 8P4

[GGPIS300]

http://www.toyotareference.com/lexusis/2001-2005