Charcoal on warm, rich skin tones (True Autumn)

The answer

Close, but not a match. Charcoal sits just outside the True Autumn palette. The nearest thing in the palette is #3E3226, ΔE 11.5 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 charcoal scores across all twelve seasons

Charcoal is an opinionated colour: Deep Winter scores it 92 and Light Spring scores it 0. A gap that wide means the colour genuinely decides something, and getting it right is worth the effort.

True Autumn sits 7 of twelve at 71, 21 points behind Deep Winter. That gap is the honest size of the compromise, not a verdict on the colour.

• Deep Winter: 92 (ΔE 3.3).
• True Winter: 88 (ΔE 4.8).
• Bright Winter: 87 (ΔE 5.3).
• True Autumn: 71 (ΔE 11.5) <- this season.
• Light Spring: 0 (ΔE 37.8).

What to wear instead

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

• #3E3226: very deep, a chocolate brown (ΔE 8.6).
• #6B5842: deep, nearest common name olive green (ΔE 14.1).
• #6B4A2C: deep, a chocolate brown (ΔE 10.8).