Rust on cool, soft skin tones (True Summer)

The answer

No. Rust sits well outside the True Summer palette. The nearest thing in the palette is #C48CA0, ΔE 32.7 away. Under 12 reads as the same colour family; past 25 the two are visibly different colours.

There is a second problem. Rust lands within ΔE 9.9 of #8B4513, which is on the short list of colours that actively work against True Summer colouring. That is the failure people can see and cannot name.

How rust scores across all twelve seasons

Rust is an opinionated colour: True Autumn scores it 88 and Light Summer scores it 0. A gap that wide means the colour genuinely decides something, and getting it right is worth the effort.

True Summer sits 11 of twelve at 0, 87 points behind True Autumn. That gap is the honest size of the compromise, not a verdict on the colour.

• True Autumn: 88 (ΔE 5.0).
• Deep Autumn: 87 (ΔE 5.1).
• True Spring: 71 (ΔE 11.8).
• True Summer: 0 (ΔE 32.7) <- this season.
• Light Summer: 0 (ΔE 34.4).

What to wear instead

Nearest first. These are the colours in the True Summer palette that get closest to what you wanted from rust, so the substitution costs the least.

• #C48CA0: mid-tone, a mauve (ΔE 10.1).
• #9E7C98: mid-tone, a mauve (ΔE 3.9).
• #D89AA8: light, a blush pink (ΔE 10.0).