I've only worked with lemons - and they do have shades of orange to them as babies. Most pastels that I've seen do have some "shade" of orange in their pattern as babies. You want the least intense orange.

Here's another example of a lemon (my founding male, Winston) as a baby, and then as an adult. Adam Wysocki hand selected him for me.





When he arrived:



About a year old:


At 2 years old: