Difference between fawn and lilac in British Shorthairs!

Good morning!

So, I have a Brit kitten that I'm getting in March, that was just born on 01/07 (the kitten in my profile pic).

When I first reserved him, the breeder was pretty sure he was a fawn. Now, she's changed his status to be fawn/lilac.

Looking at pictures of fawns and lilacs I can't see much of a difference in color. Some of the images that come up under 'lilac' look like a paler version of blue, but there are also images of ones that look not too much different than the fawn ones, and others that look like a very pale chocolate.

I know in some cat breeds the way you can tell the actual color is a difference in pigment on the nose leather or paw pads. I guess my question is, what is the actual difference between a fawn and a lilac, and while I'm sure the breeder has reason to be unsure of his adult color, what does the kitten look like to you guys, a fawn or a lilac? To me, the color looks like a fawn and identical to his fawn sister, but I'm not an expert and I know kittens can change color as they grow.

This is only out of my curiosity, I'll love him no matter what color he is, genetics and cat colors are just fascinating to me.

If it helps on a genetic level, his sire is a blue and his mother is a chocolate. The litter of four has a blue boy, my fawn/lilac boy, a fawn girl, and a chocolate girl.

Even though I personally don't "work" with Fawn or Lilac, I will try to explain what I know.

You have black in 3 different pigment densities. Black > Chocolate > Cinnamon. Black is the darkest, Chocolate is like a dark brown, and Cinnamon is more lighter brown than Chocolate and possibly a little towards red-ish.

If you add Dilute to the Black, you have the following pigment densities: Blue > Lilac > Fawn. Just like the Black/Chocolate/Cinnamon, it gets ligher the further you get. So this means Lilac is a diluted form of Chocolate, while Fawn is a diluted form of Cinnamon. This will mean that Fawn will be lighter in color than Lilac and also have a different kind of "glow" (Pale chocolate vs Pale Cinnamon). 

Looking at the picture, I personally would label her as a 'Fawn', but kitten-fur can make it quite hard to see their true color until they are a little older (Around 6 weeks you should be able to tell, give or take a few). It's possible this kitten is getting darker than it was at birth, and that the breeder is predicting the kitten might go to Lilac.

Beautiful, that helps, thank you

As I said, it's just my curiosity, both colors are beautiful and I'd love him no matter what. I noticed today the breeder flat out changed the 'fawn' girl (sibling to my boy) to lilac now so it looks like both of them are getting darker as they age.

My boy is still shown as a fawn/lilac so it may be that he's not quite made up his mind yet!

Just got a new pic from the breeder. He's the one on the right...