The most important thing to learn, when you are learning about colours, is that all colours have three properties.
Think of each of these properties as a continuum and each colour sits somewhere between one end and the other.
The three properties - Value - Undertone - Intensity I've written about here.
The Enigmatic Palette
When you think about the warm, deep and smoky colours of the Enigmatic Palette - Where they sit on each of the continuums would look like this
How to Mute a Colour
Both black and white are cool undertone, so when you add grey to a colour to make it more smoky, you take out both the intensity of the colour and reduce its warmth. When you start with very warm colours and add grey, you don't necessarily make the colours cool, you just cool them down some so they are still warm, but just warm instead of being right up the end of the warm/cool continuum. If you look at the image above, take the very warm green and add some grey, will still be a yellow-green which is warm, just a muted version instead of a brighter one!
There is another way to make a colour more muted and smoky. It's to add the complementary colour. 
When you think about this - the complementary colour is the colour opposite on the colour wheel. So if you are adding the opposite - this colour normally has the opposite overtone and will either warm up slightly, or cool down the colour as it removes the brightness, remember that blue-based colours are cooler and yellow-based colours are warmer in undertone. Because you're only adding the teeniest bit (you can try doing this with some paints to see how little you need to add to grey a colour down while still keeping its hue intact), it just subtly changes the undertone of the colour at the same time as it changes its intensity.
This is why the Undertone of Enigmatic (Smoky, Warm, Deep colours) is closer to the warm/cool divide, rather than being more obviously warm.
Finding Your Colours in Fashion
Just like any other aspect of fashion (which is a retail business, there to make money, not to make you look great or to provide you with exactly what you're after), along with the shapes and styles of clothing changes, there are also trends in colours.
You'll know that I will share each year the Pantone fashion colours to give you an idea of which colours you're more likely to see in clothes each year, and there will always be some variation in these colours by the time they reach the stores. You'll never get the full rainbow of colours in every palette at any one time, but in my experience of shopping with clients, there are always some colours from every palette available. You just might not find the exact ones you're after right now and may need to wait, or choose to overdye the clothes to bring them to the colour you're after.
It's important not to set your heart on finding a particular colour when you shop. Instead, be open to the full palette of colours available and choose the best for you from what is around, knowing that in a season there will be a new palette of colours to choose from. Over time you will build out the colours in your wardrobe as what flatters you becomes available. This season it may be the pinks and greens, next season a couple more colours will become available.
Remember, the best wardrobes are built over time and not in one season or even year!
I created these two images above to show a range of the Enigmatic colours - which you can source locally as what is available in one store is usually available in more!
If you want to know where to get these specific items, you can find them here and here.
If you want to discover your best palette of colours - you can get a colour analysis as part of my 7 Steps to Style program (which also includes body shape assessment along with all the other parts of the style puzzle) or just have one as a stand-alone service either in person or in person.
More Tips on Colour Selection
How Often Should You Re-Evaluate Your Style Recipe and Colour Palette
How to Pick the Undertone of a Colour
How to Pick the Undertone of Purple
How to Distinguish the Undertone of Red and Burgundy
Your Ultimate Colour Personality Dressing Style Guide
