Mustard on warm skin tones with high contrast (Bright Spring)

The answer

Yes. Mustard sits inside the Bright Spring palette. The nearest thing in the palette is #FFAA33, ΔE 10.0 away. 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 mustard scores across all twelve seasons

Mustard is an opinionated colour: True Autumn scores it 81 and True Winter scores it 0. A gap that wide means the colour genuinely decides something, and getting it right is worth the effort.

Bright Spring sits 3 of twelve at 75, 6 points behind True Autumn. That gap is the honest size of the compromise, not a verdict on the colour.

• True Autumn: 81 (ΔE 7.6).
• True Spring: 79 (ΔE 8.4).
• Bright Spring: 75 (ΔE 10.0) <- this season.
• True Winter: 0 (ΔE 34.1).

What to wear it with

The palette entries closest to mustard are the ones that will read as a deliberate pairing rather than a near-miss, because a near-miss of two similar colours is more noticeable than a clear contrast.

• #FFAA33: light, a mustard (ΔE 10.0).
• #FFC400: light, a mustard (ΔE 10.3).
• #E8D000: light, nearest common name mustard (ΔE 14.5).