Imogen’s Three Rules of Horizontal Lines


Discover Imogen's 3 Rules of Horizontal Lines So you Can Find Flattering CLothes and create gorgeous outfits


Before you take that garment into the change room, understanding the illusion of line really helps you choose clothes that flatter your figure.

Lines are used in clothing design in a number of ways:

  • As part of the silhouette – that’s the outline of the garment
  • In the construction – that’s all the seams that hold it together
  • As design details – that’s the fun stuff like pockets and plackets and decorative detail

What kind of lines they are and where they sit on your body can make you look taller, shorter, wider and narrower.   All the ‘rules’ on what to wear for each body shape really just relate back to the illusion of lines, and what they are doing to your body.

Knowing how to use lines judiciously will give you a complete head-start when choosing what to take into the change room (whether that’s a virtual change room or a real one).

Let’s discuss the power of the horizontal line.

Horizontal lines:

  • Create balance
  • Visually widen the area they are placed on
  • Are created by most hems on garments

The effects of horizontal lines and how to choose clothes to flatterImogen’s Three Rules of Horizontal Lines

  1. Never put a horizontal line on a body part you want to minimise or make look narrower. This includes hems, details and silhouette elements.
  2. The eye fills in the line.  So two short horizontals can create one long horizontal across your body if they line up on a garments such  pockets, sleeves, cuffs etc.
  3. We look for horizontal lines first.  We we see something, we look for the horizontal line first as it gives us balance.  So put horizontals on areas you want to broaden (to balance other areas) and take note of where horizontals fall on your body.

So let’s put this knowledge into action.

Rule 1 – Horizontals Broaden

I often call this the “Where do I end My Hems” rule.

Make sure your hems sit on the narrower parts of your body, unless you want to add extra curves to that area (and some of us do want to add extra curves!).  Remember there are hems on sleeves and pants as well as tops.  Waistbands count as hems too!  Some collars and necklines also create horizontal lines (such as boat necks).

Where are horizonal lines found on clothes?

So if  you don’t want to broaden your hips or thighs, don’t end tops at the widest points of your hips or thighs.

If you don’t have a defined waist, don’t broaden it with a belt or obvious waistband.

But, you can also use this rule to balance the wider parts of you.  Want to balance your more curvaceous hips? Then add horizontal details to your shoulders.

Want to make your square shoulders look narrower?  Then add some horizontal details to your hips.

You can decide what you want to broaden and choose to add a horizontal to this area.

Find out more about the horizontal line rules for your body shape in your Body Shape Bible which you can do the quiz and download here.

Rule 2 – The Eye Continues the Line

So our eyes keep on going and even if there is a short horizontal line, our eyes will fill in the gap between two short horizontals – such as sleeves, pockets and cuffs.How you can use horizontal lines to broaden or balance your body shapeSo if you have a large bust, don’t wear tops that have sleeves ending at the fullest part of your bust.

If you don’t want to add more width to your thighs, avoid jeans with whiskering at the crotch and pants or skirts with obvious pockets on the thighs.



Rule 3 – We See Horizontals First

That is, before verticals, and those are the slimming lines!How to choose clothes based on the illusion that horizontal lines have

Yes we usually want to look for items that aren’t all covered in horizontal lines, we want to make sure we find a few vertical lines in our outfits (more on that here).  But we see the horizontal lines first as we are always looking for the horizon as that gives us balance.

You want to be careful that your outfits aren’t ‘horizontal dominant’ if you are hoping to look either taller or slimmer.

This is why we can also use the horizontal line to balance our body – it draws attention to where we want people to look as well!

Narrow Horizontals Lengthen

Now, just one little caveat!  Not all horizontals are broadening!  That’s right.

When the horizontals are too fine for the eye to follow along one at a time, and when there are multiples of them, they can actually start working like a vertical line and become elongating.

In fact it doesn’t matter the direction of the line.  Wide stripes widen (particularly when there is an obvious change of colour). Effect of width on stripes and how we see them

So before you take that garment into the change room, have a good look at it and decide where the horizontals are, and if you want them to fall on that part of your body!

If you’re not sure about your body shape and would like my professional opinion, you get this as part of my 7 Steps to Style Program (along with personal colour analysis plus so much more to help you save money and develop your style).


7 steps to style solve the style puzzle


What Does Knowing Your Body Shape Really Tell You?


How You Can Use Verticals To Look Taller and Slimmer


E is for Elongation


I'm not sure if it's for you but how would you feel if you learned all about the colours and styles of clothing that suit your individual personality, shape and style? Just imagine what it would be like when you can open your wardrobe and pull together fabulous outfits that make you look and feel amazing every day? If you'd like to stop wasting money on the wrong clothes and accessories plus join an amazing bunch of very special women also on their style journey - then my 7 Steps to Style program is right for you. Find out more here.

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  • Dear Imogen,

    What a wonderful post with all those images which show the concept perfectly. Could you do one for vertical lines with those kind of images as well? I know that you have the other elongation post but this post makes it even clearer.

    Thanks a lot.


  • Dear Imogen,
    I agree with Tina, wonderfully illustrated!! This is especially helpful for those if us trying to bring more color in our wardrobe without creating additional horizontal lines in unwanted places.

    If you decide to do another tutorial defining verticle lines would you consider featuring medium value colors without high contrast? Its so difficult to get this concept in place utilizing additional colors strategically.

    Thank you for your hard work and generous heart…you are the best,

  • Hi Imogen

    Thank you for this great post. I love the fact that you put arrows and explanations on your examples. Instead of just telling me not to end my jackets at the widest part of my hips, you have given me a proper reason. I now understand why something looks okay one time and not the next even though it is supposedly ‘my colour’ or ‘my style’. I sense another closet clean-out coming up.

  • Very interesting! I tried something new. I have very sloping shoulders and usually wear long shirts because I thought it was in style. After considering the illustrations, I tucked in my shirt, as having a waistline is my asset. Amazing. My shoulders didn’t look so slope-y!

  • Dear Imogen,
    Thanks to you, I’ve tried something new. I have very sloping shoulders and usually wear long shirts because I thought it was in style. After considering the illustrations, I tucked in my shirt, as having a waistline is my asset. Amazing. My shoulders didn’t look so slope-y!

  • I am a rectangle body shape. I have 3 plaid shirts that I love the color and the look (on others). Everytime I put them on I take them off right away. My head looks like a baseball on top of a refrigerator. Now I know why. And, I can let go of trying to make the look work. Thanks , Imogene, for saving me from frown lines.

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