Sky blue on neutral-warm, muted skin tones (Soft Autumn)

The answer

No. Sky blue sits well outside the Soft Autumn palette. The nearest thing in the palette is #E0D5C2, ΔE 26.4 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.

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

How sky blue scores across all twelve seasons

Sky blue is an opinionated colour: Light Summer scores it 87 and Deep Autumn scores it 0. A gap that wide means the colour genuinely decides something, and getting it right is worth the effort.

Soft Autumn sits 10 of twelve at 34, 54 points behind Light Summer. That gap is the honest size of the compromise, not a verdict on the colour.

• Light Summer: 87 (ΔE 5.0).
• Light Spring: 84 (ΔE 6.5).
• True Summer: 81 (ΔE 7.6).
• Soft Autumn: 34 (ΔE 26.4) <- this season.
• Deep Autumn: 0 (ΔE 35.5).

What to wear instead

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

• #E0D5C2: very light, a cream (ΔE 4.2).
• #7C8878: mid-tone, nearest common name grey (ΔE 12.6).
• #B5A791: light, a beige (ΔE 8.9).