Mauve on warm, rich skin tones (True Autumn)

The answer

No. Mauve sits well outside the True Autumn palette. The nearest thing in the palette is #8F7A5C, ΔE 23.2 away, which is one of the four neutrals the season is built on. Under 12 reads as the same colour family; past 25 the two are visibly different colours.

It does not collide with anything on the season's avoid list, so the only question is distance.

How mauve scores across all twelve seasons

Mauve is an opinionated colour: True Summer scores it 90 and Deep Winter scores it 28. A gap that wide means the colour genuinely decides something, and getting it right is worth the effort.

True Autumn sits 10 of twelve at 42, 48 points behind True Summer. That gap is the honest size of the compromise, not a verdict on the colour.

• True Summer: 90 (ΔE 3.9).
• Soft Summer: 87 (ΔE 5.3).
• Soft Autumn: 64 (ΔE 14.6).
• True Autumn: 42 (ΔE 23.2) <- this season.
• Deep Winter: 28 (ΔE 28.7).

What to wear instead

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

• #8F7A5C: mid-tone, nearest common name camel (ΔE 13.5).
• #8A5C3C: deep, nearest common name rust (ΔE 13.5).
• #A85838: mid-tone, a rust (ΔE 7.2).