I think I know, but I'm not positive. Let me lay out my logic for you.
First off, when analyzing celebs' colors, I recommend using red carpet pics. They're taken under very bright lights and generally not Photoshopped or otherwise color-altered. So I'll look at a lot of those.
(Magazine editorial shoots are particularly unhelpful for color analysis; those are generally highly edited to create an artistic effect.)
The makeup above looks Soft Summery. Its not bad, though that eyeliner is darker than she is. (That's true of almost every pic of almost every celeb, unfortunately.)
This makeup looks a bit pinker (cooler) than she is, to my eye. And, again, the eyeliner and mascara are darker than she is. I'm going to rule out the very coolest seasons, True Summer and True Winter.
This block of black color is unconnected to her relatively makeup-free face here. I'm ruling out seasons that can wear black, so we additionally lose Dark Autumn, Dark Winter, Bright Winter, and Bright Spring.
I do find this hair color flattering for her, though it's obviously not her natural color. (Look at the roots.) Few people can wear lightened hair convincingly, but True Springs, Light Springs and Light Summers tend to be able to pull it off pretty well. I'm going to put a star next to those seasons.
Do I love her in a cool, light pink lippie, though? I don't know. I would expect this to be great on a Light Summer, such as Gwyneth Paltrow:
But I don't see it harmonizing with Lawrence's skin. It looks a little too cool. That makes me think Light Summer is unlikely.
I'd expect a True Spring to look pretty darn good in this vivid red. Do I love this for her? Not sure. Any sense of harmony I'm getting may simply be because the red dress matches the red lips, not because either of them matches her skin.
That saturated red, which could very well be a True Spring red, is so much more powerful than JLaw's skin is.
If that's hard for you to see, try squinting, or unfocusing your eyes:
The red is dominating her. Not good.
This appears to be complete Soft Summer look, including the hair, and I just don't love this for her skin. This palette looks a little muddy on her, like there's a film over her. It looks like it's concealing her authentic self instead of revealing it.
Wow. I like this lippie for her, and this blush. And the eye's not bad, either. (Though maybe too warm? Again, there's a faint impression of a film having been laid over her, though a warm one this time... )
It can be tough to tell a lippie's true color when it's on someone's skin, because the underlying skin color affects the appearance of the lippie's color. But my best guess about this lippie is that it's Soft Autumn or True Autumn. It looks warm, somewhat muted, a little orange-y but not a lot.
This makeup looks warm and muted; I think it's Soft Autumn or True Autumn (second choice.) I like it for her.
Try to ignore the super-light hair here, and just notice the effect of the pumpkin-y orange. Is it making her glow? Is it resonating with her natural skin tone? Especially look at the effect of the orange on her chest, where she's probably wearing less makeup than on her face.
I don't see the color making her skin look more alive. I'm willing to rule out True Autumn.
I think I've got it narrowed down to Soft Autumn and Light Spring. (Which are both warm and gentle, though in different ways; Light Spring is lighter and more vivid, while Soft Autumn is darker and more hushed. Easter colors vs. desert colors.)
I was feeling pretty sure about Soft Autumn, but look at this light warmish pink lippie and blush. (Ignore the inharmonious black liner.)
Could a Soft Autumn look authentic in this? I don't think so. Yet, I don't hate it here. And I don't hate the big block of light yellow next to her face (i.e., the dyed blonde hair.)
Is it possible Jennifer Lawrence is a Light Spring? Or is Soft Autumn correct? Or another season?
What do you think?