You’ve already created a strong base with a moss green down jacket and blue denim jeans — both of which are grounded, natural tones that work beautifully for fall and winter. To complete your look with a third color, I recommend adding a yellow knit sweater as your inner layer.
Why yellow?
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Yellow pairs naturally with moss green, echoing the earthy tones of autumn leaves and sunlight.
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It contrasts nicely with blue jeans, offering just the right amount of visual pop.
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Most importantly, it brings brightness and warmth to your outfit — perfect for lifting the mood during the darker seasons.
This three-color coordination — moss green, blue, and yellow — strikes the perfect balance: stylish, practical, and never overwhelming. You’ll avoid looking too plain or too bold.
Tip: A soft, mustard or golden yellow works best. Avoid neon shades and opt for something that blends gently with natural colors.
You can see a perfect example of this coordination in the outfit below.
The yellow sweater brightens the look, while the accessories keep everything grounded and cohesive.