Test Union Blue without buying a paint sample
See it in your own room — no paint samples, no patches, no repainting.
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Union Blue in 30s — $2.49
Cheaper than a paint sample ($6–12) — backed by an automatic refund guarantee
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Snap your space, swap in Union Blue, decide before you buy.
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About Union Blue
Union Blue is a medium blue paint colour by Glidden with a cool, blue undertone. Its cool quality creates a calming, restful atmosphere, making it a popular choice for modern interiors. It is particularly well suited to living rooms, dining rooms, home offices. Use our colour visualiser to see how Union Blue looks in your own room before committing to a purchase.
Where to buy Union Blue
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Frequently asked questions about Union Blue
What undertone does Union Blue have?↓
Union Blue by Glidden has a cool, blue undertone. It is a cool medium colour that falls within the blue family. This makes it calming and serene in most lighting conditions.
Is Union Blue good for small rooms?↓
Union Blue is a medium-toned colour that can work in smaller rooms if paired with good lighting and lighter accents. For the best results in small spaces, consider using it on a feature wall rather than all four walls.
What colours go well with Union Blue?↓
Union Blue pairs beautifully with warm neutrals, creamy whites, and natural wood tones to add warmth, or with other cool shades like sage green and soft grey for a cohesive palette.
How can I test Union Blue before buying?↓
You can test Union Blue by Glidden instantly using our paint colour visualiser. Simply upload a photo of your room and see exactly how Union Blue will look on your walls - no tester pots needed. It takes just 30 seconds and you can compare multiple colours side by side.
Which rooms suit Union Blue best?↓
Based on its medium tone and cool undertone, Union Blue works especially well in living rooms, dining rooms, home offices, studies. Medium-toned colours like this strike a balance between cosiness and openness.
Ready to test Union Blue? Skip the paint sample.
Test This Color Now →Union Blue by Glidden
See your room in Union Blue — $2.49