Test Onyx without buying a paint sample
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Onyx 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 Onyx, decide before you buy.
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About Onyx
Onyx is a dark charcoal paint colour by Glidden with a pure neutral undertone with no strong colour bias. Its balanced, neutral quality makes it incredibly versatile, making it a popular choice for modern interiors. It is particularly well suited to feature walls, dining rooms, bedrooms. Use our colour visualiser to see how Onyx looks in your own room before committing to a purchase.
Where to buy Onyx
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Frequently asked questions about Onyx
What undertone does Onyx have?↓
Onyx by Glidden has a pure neutral undertone with no strong colour bias. It is a neutral dark colour that falls within the charcoal family. This makes it versatile and balanced in most lighting conditions.
Is Onyx good for small rooms?↓
Onyx is a dark colour, so it may make very small rooms feel more enclosed. However, it can create a dramatic, cocooning effect in feature walls and dining rooms. Pair it with lighter trim and furnishings to balance the depth.
What colours go well with Onyx?↓
Onyx pairs beautifully with both warm and cool accent colours, making it highly versatile - try it with soft blush, muted sage, or warm taupe for a sophisticated scheme.
How can I test Onyx before buying?↓
You can test Onyx by Glidden instantly using our paint colour visualiser. Simply upload a photo of your room and see exactly how Onyx 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 Onyx best?↓
Based on its dark tone and neutral undertone, Onyx works especially well in feature walls, dining rooms, bedrooms. Darker shades like this add depth and drama, creating an intimate atmosphere.
Ready to test Onyx? Skip the paint sample.
Test This Color Now →Onyx by Glidden
See your room in Onyx — $2.49