As a true summer and ethereal soft classic, here are my rules.
The short list
In colors, I only wear pink, purple, blue, green, and pale lemon yellow.
(Plus neutrals: grey, taupe, and silver-white.)
Most of my colors are pastel-like—a little muted, a little soft, smudgy and medium-intensity… Or sheer, light, and fresh like watercolors.
My prints are floral, abstract, or celestial—always swirling, and often reminiscent of the sea or sky.
In metallics and jewelry, I only wear silver, platinum, and white gold; aquamarine and blue topaz; pearls and mother of pearl; and diamonds.
My favorite color is blue. And that’s it.
The long list
Dark blue: Muted navy
Blue: Sky, periwinkle, true blue
Blue-green: Teal, emerald turquoise, medium aqua
Green: Mint, jade, spruce, sage, forest
Yellow: Pale lemon
Pink: Ballet pink, rose, orchid
Deep pink-red: Raspberry, watermelon, cool coral
Purple: Lilac, grape, violet, true purple
Dark purple-red: Plum, aubergine
Grey: Dove, stone, charcoal
Pink-brown: Mushroom, taupe, cinnamon rose, cocoa
White: Soft white, silver-white, pearl
Stones: Pearl, aquamarine, diamond
Metals: Silver, platinum, white gold
 See analysis here: “True, Soft, or Light Summer? Kristen Stewart and Emily Blunt,” truth-is-beauty.com/blog/true-soft-or-light-summer-kristen-stewart-and-emily-blunt.
 By contrast, here’s a short list of what I don’t wear.
Avoid: black, inky navy.
Absolutely no: black or inky navy near the face; red, orange, neon; anything with words on it; animal print (except snakeskin); houndstooth; denim.
See my worst colors for more.
 These rules aren’t necessarily the case for all true summers. Colors interact with shape, line, and material, so any color guidelines must be informed by your style archetype.
My style archetype is ethereal romantic classic (aka soft classic). So, for example, a good rule for me is “no denim”—but natural-archetype people should ignore that, because they’ll look great in denim.