Explore subtractive colour mixing with the CMY cube.
Opposing sides are coloured cyan, magenta or yellow. Rotating the angle from which the cube is viewed, varies the degree to which specific frequencies of cyan, magenta, and yellow are filtered from white light, resulting in a unique, cube-specific spectrum of colours. This process is called "subtractive colour mixing". The internal geometry of the solid shape has an intermediate level of reflectance over the visible light spectrum. This means that when white light reaches a face of the cube, a portion of that light passes through the face, while the remaining light is either reflected or absorbed. Light reflecting off of the outside faces of the cube is what gives us the cyan, magenta, and yellow colours of the spectrum while the material coating each face absorbs the other frequencies. The light that passes through the material retains only the band of frequencies not otherwise absorbed. When this passed-through light makes contact with a different face pair, the process repeats, this time the material absorbs a different band of frequencies. The light that remains is a unique colour, specific to the conditions that created it. Starting with pure white light, the CMY cube can create dozens of unique colours.
How many colours can you create?


The common CMY Cube replica - the 'dichroic cube' is commonly sold all over the internet. The differences between our cube and the replica cube is vast.

The common replica [found on Aliexpress, Ebay, Amazon and other drop-shipping websites] are usually sold for between $5-15 and are usually less than 1" in size. Make sure you read the description carefully!

We do not sell our products on any other website!

Our CMY Cube is 5cmx5cm in size and each face of the translucent cube is delicately coated in electromagnetically subtractive materials which at first, appear as cyan, magenta, or yellow. Twisting and turning the geometry creates new combinations, resulting in the appearance of new colours.

 If you have any questions before you purchase a cube, please don't hesitate to contact us!



Fragile:  These cubes are a bespoke handmade product and are fragile, they are for educational use and not a toy.  3 sides of the cube are coated in a fragile film and 3 sides are uncoated.  Sliding the cube around on a surface can damage or start to peel the film off.  When handling, try to not touch the edges or corners of the cube as to not damage the film.  If the film does begin to peel at the edges, very carefully lightly press the film back against the cube.  Some very light defects/scratching/peeling can occur to the cube during handmade production, this will not effect the educational use of the product.

If your cube has arrived noticeably faulty, please contact customer service immediately to organise an exchange and complete relevant documentation.

Please note that normal wear and tear is not considered a product fault.

All purchases of sale and/or seconds items are final sale and not eligible for return or exchange. 


Please choose your order carefully as all sales are final and we do not exchange or refund for change of mind (including unwanted gifts, wrong selection etc.)  Product dimensions and details are listed on the product's page to provide as much information about the product as possible prior to purchasing.

Our dedicated customer care staff are our product experts, and are always available to assist with questions or enquiries. 



We kindly ask for your patience and understanding during the current Coronavirus pandemic. Unfortunately shipping delays across all countries are to be expected at this challenging time and we cannot guarantee our usual shipping timeframes. Please know that we will continue to work to deliver all orders as soon as possible while we keep our close attention on the situation. We sincerely apologise for any inconvenience and thank you kindly for your understanding.

For more information regarding shipping and transit during COVID-19, please refer to the Australia Post website here.

CMY Cubes is based in Sydney, Australia and we ship worldwide.

Most orders are dispatched the next business day. Please kindly allow for additional dispatch time during busy periods. Although we do our best to send out orders in a timely manner, we cannot be held responsible for any delays with Australia Post.


STANDARD POSTAGE (AUSTRALIA POST): $5 on domestic orders

Typically 3-5 business days shipping within metro areas, can be approximately 5-10 to rural addresses or to WA.



Typically 2-4 weeks worldwide.

*International customers: items might attract duties/taxes according to the regulations in your country. Duties, taxes and fees are the responsibility of the addressee and are out of the sender and delivery agents hands.

Please ensure to have the correct address to prevent returns and delays: unit/apartment number (if applicable), building number, street name, suburb, state, post code (zip code), country and phone number. CMY Cubes is not liable for delays if the receiver has placed insufficient address details. If there are insufficient address details, the parcel will be returned back to CMY Cubes and there could be further delays with your order as well as an additional charge for resending if the original address is inadequate to be delivered. 

If an item says "PRE-ORDER" in the title, it means it is currently out of stock, and will be shipped once it has been restocked. Typically 15-30 days The estimated restock/shipping date will be listed in the product description. Please note all "PRE-ORDER" dates are approximate. If you require an item by a specific date, we recommend emailing us prior to purchasing. Items that are placed with pre-order items will be sent together once the pre-order arrives.

Satisfaction Guarantee

Our satisfaction guarantee is simple: If you're not happy, let us know and we'll make it right for you. We're committed to you having an amazing experience here at on all levels. We strive to achieve that every day. We understand we're not perfect though. We make mistakes. Usually we catch these mistakes and make them right before you ever learn about it, but sometimes, we don't. If that happens, tell us. We care about you and want you to be happy.