I'll post some pics to your Tahoe Blue request in the other thread, but one thing you might consider as we learned; you are not buying "a" color. You are getting the range depicted.
I too thought the PT Tahoe Blue section contained many different colors and a poor representation for choosing color, but actually, it's showing you samples of every color you can expect from the same pool on any given situation of lighting and effects to lighting, sans the one pic with the blue LED. I can attest that though we get predominately a clear blue on bright days, with morning, evening, overcast, full sun..... we get every one of those colors on the site at some point and over the same day or angle you look at in relation to the sun.
To sum up that color, it's anywhere from aqua-blue to clear true-blue on any given time of day, and, every once in awhile, a tint of turquoise.