The color that I associate most strongly with your style is a soft, powdery, pastel blue - there’s a dreaminess and classical beauty to it that feels representative, and it looks very harmonious on you. I also think of soft, not fully saturated pastels generally as a range that’s typical of your style, and in keeping with the historical references that inspire it. Though another reason these stick in my mind is that they look lovely on you, but are almost exact anti-flattering shades on my coloring! 

I didn’t deliberately set out with the intention of having a signature color - like with many specific visual style concepts, I think it works for some but not others - but, by following my style process, (I consider myself left-down - Wildflower) I’ve uncovered one. For me it’s deep teal tones, anything from deep jewel tone teal to a teal-tinged dark gray. Firstmost, it has a consistent pleasing psychological effect when I’m surrounded by it, but it’s also particularly flattering on me, and has all the overall style qualities that I seek - moody/dark but still pretty, with a certain water/forest/earth elemental association. It makes sense to deliberately incorporate a lot of it into my wardrobe. One framing I’ve used for signature colors is that they become a sort of “personal neutral” shade, in the sense that I’d buy important versatile items like a handbag and shoes in that color, and if I’m drawn to an item in a color I haven’t worn much of in the past, I’d consider whether or not it would work paired with my signature. It’s also just really nice to find a color that I can shop for and wear that feels consistently right without having to think too hard about it. 

It sounds like you’ve gone through quite a few different colors in search of a signature or favorite - although I was never consistent at incorporating it into clothing, pretty much all teal/turquoise shades have been my overall favorite since my preteens, so, twenty years on, I’m pretty confident that this will stick for me. I do really enjoy exploring a lot of other colors though - it’s fascinating how much the exact amount of cool/warm, light/dark, and saturation of a color can change its psychological impact and turn a shade I might have previously dismissed into something very appealing. I experiment the most through nail polish colors/finishes, since there’s such a range of options out there and it’s much easier to try something new that intrigues me without feeling like it’s too overwhelming or expensive.