Black on neutral-cool, muted skin tones (Soft Summer)

The answer

No. Black sits well outside the Soft Summer palette. The nearest thing in the palette is #4F4E4A, ΔE 19.4 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.

There is a second problem. Black lands within ΔE 3.0 of #000000, which is on the short list of colours that actively work against Soft Summer colouring. That is the failure people can see and cannot name.

How black scores across all twelve seasons

Black is an opinionated colour: Deep Winter scores it 93 and Light Summer scores it 0. A gap that wide means the colour genuinely decides something, and getting it right is worth the effort.

Soft Summer sits 7 of twelve at 33, 59 points behind Deep Winter. That gap is the honest size of the compromise, not a verdict on the colour.

• Deep Winter: 93 (ΔE 3.0).
• True Winter: 93 (ΔE 3.0).
• Bright Winter: 93 (ΔE 3.0).
• Soft Summer: 33 (ΔE 19.4) <- this season.
• Light Summer: 0 (ΔE 44.4).

What to wear instead

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

• #4F4E4A: deep, a charcoal (ΔE 8.8).
• #7D7B76: mid-tone, a grey (ΔE 11.2).
• #748088: mid-tone, a grey (ΔE 11.4).