Original Bra Colour Guide: Petrol Blue, Iris, Nude One & More
By Home | Published: 2026-11-02
Category: Buying Guides
Pick your Original Bra colour by outfit, skin tone and mood. Compare Petrol Blue, Iris, Nude One and Retro Rainbows, with clear rules for matching and support.
Quick answer
Choose Nude One when the bra must disappear under light or sheer clothing, Petrol Blue or Iris when you want a colour that feels deliberate, and Retro Rainbows when matching comfort matters more than hiding. All four are non-wired Original Bras with the same supportive fit, so colour is the real decision.
Why colour changes the job your bra does
The Original Bra is designed to be comfortable and supportive without wires, and the colour you pick decides how well it works under different outfits. A bright shade can show through a thin white shirt; a skin-tone shade can vanish under the same shirt. That is not a quality difference, it is a use difference.
Think about your week before you choose. If most days involve light-coloured or close-fitting tops, a nude tone earns its place. If you wear darker layers or enjoy a flash of colour at the neckline, Petrol Blue or Iris gives you more personality per wear.
The trade-off between bold colour and invisible coverage
Petrol Blue and Iris are statement colours: they are meant to be seen, whether that is a strap peeking out or a colour you enjoy privately. They are less reliable under pale, sheer or very thin fabrics. Nude One is the opposite: it is designed to blend in, with three skin-tone colours in the Nudes collection, so it is the safer choice when your priority is a bra that stays out of the conversation.
Retro Rainbows sits in the middle. The print is colourful and playful, with a cobalt blue trim, so it will show under light clothing. Choose it when you want the matching feeling with Retro Rainbows briefs and you are not trying to hide the bra.
How to read the colour names honestly
Colour names on a screen are not a perfect match to real life. Petrol Blue is described as a bold blue, Iris as a bold purple, and Nude One as part of a three-shade skin-tone range. If you are matching a specific outfit, treat the product name as a starting point and check the fabric description rather than assuming an exact shade.
The Retro Rainbows design includes rainbows, clouds, stars, flowers, lightning bolts, suns and moons, so it is a print rather than a solid. That makes it more forgiving to match with other colourful briefs, but harder to pair with a strict neutral wardrobe.
Decision rules for choosing your Original Bra colour
- If the bra must stay hidden: Choose Nude One. It is the only option in this group designed as a skin-tone neutral, and the Nudes collection offers three shades to help you find a closer match. Check the shade against your skin in daylight if you can.
- If you want a colour you will notice: Choose Petrol Blue for a bold blue or Iris for a bold purple. Both are statement shades, so plan them for outfits where a visible strap or neckline is acceptable.
- If you want a matching set with personality: Choose Retro Rainbows and pair it with Retro Rainbows briefs. The print includes rainbows, clouds, stars, flowers, lightning bolts, suns and moons with a cobalt blue trim, so it is best treated as a visible layer rather than a hidden one.
- If you are unsure between two shades: Start with the one that matches the clothes you wear most often. A colour that works with your daily wardrobe will get more wear than one saved for occasional outfits.
Product facts at a glance
- Original Bra - Petrol Blue: Petrol Blue is a bold blue designed to stand out in your underwear drawer. Pick it when you want a colour that feels intentional and you are not relying on the bra to disappear under light tops.
Original Bra - Petrol Blue - Original Bra - Iris: Iris is a bold purple that can be matched with Iris briefs. It is the choice for purple lovers who want a coordinated set without giving up the Original Bra's non-wired support.
Original Bra - Iris - Original Bra - Nude One: Nude One is part of a three-shade skin-tone Nudes collection and is described as soft, gentle and supportive. It is the most practical option when you need a bra that blends under light or sheer clothing.
- Original Bra - Retro Rainbows: Retro Rainbows is a colourful print with a cobalt blue trim, designed to match Retro Rainbows briefs. Choose it when matching comfort and a playful look matter more than invisible coverage.
Who each colour suits
Best for
- Anyone who wears light, sheer or close-fitting tops and wants the bra to stay hidden: Nude One
- Shoppers who want a bold colour and do not mind a visible strap: Petrol Blue or Iris
- People building a matching set with Retro Rainbows briefs: Retro Rainbows
Not for
- Anyone who needs the bra to disappear under a white shirt: Petrol Blue, Iris or Retro Rainbows
- Shoppers who want a strict neutral underwear drawer: the bold shades
- People who prefer a wired bra: all Original Bras are non-wired
