The graphic design elements: line, shape, space, scale, texture and colour, defined tightly

What the graphic design elements are for

A list of six words is not knowledge. A usable account of the elements of graphic design states, for each one, the job it does that none of the others can do, because only then can one say which element a particular problem belongs to, which is the only reason to have a list at all.

The six graphic design elements below are the materials, and naming which of the graphic design elements a problem belongs to is the only reason to keep a list at all. What gets done with them, alignment, contrast, repetition, proximity, hierarchy, balance, is a separate list of operations, and keeping the two apart is most of the value of learning either.

Line: it divides, and it points

A line does two things nothing else does as economically. It separates one region from another without enclosing either, and it indicates a direction.

Most lines on a well-made page are implied rather than drawn. The left edge of a column of text is a line. The tops of three items placed at the same height are a line. An implied line does the same separating work as a drawn one and adds no ink, which is why a layout that needs many drawn rules is usually a layout whose alignment is doing too little.

Weight carries meaning. A hairline reads as an aside; a heavy line reads as a boundary. Using one weight for everything discards a variable that costs nothing.

Shape: it encloses, and it is recognised before it is read

A shape is a closed region, and closure is what makes it a single thing to the eye. It is recognised faster than any of the content inside it, which is why a badge, a button and a mark all work.

The distinction worth holding is between shapes that are content and shapes that are containers. A container shape (a card, a panel, a box) is a grouping instrument, and it is usually being asked to do work that proximity could do for free. A page full of boxes is a page where the spacing was never resolved.

Space: it groups, and it is the only free element

Space is the element people are most reluctant to use and the one that costs nothing. What space does that nothing else does is group: two items close together are read as related before either is read at all, and no border, colour or line is needed to say so.

The practical rule is that the space within a group must be visibly smaller than the space between groups. Where those two are similar, no amount of styling will make the grouping legible, and where they are clearly different, almost no styling is needed.

Empty space at the edge of a composition is not the same as space between elements. The first is margin and it is doing structural work; the second is the grouping instrument.

Scale: it ranks

Scale is relative size, and its job is to establish an order of attention. It is the bluntest and most reliable of the six: a reader will look at the largest thing first, essentially without exception.

Two failures recur. Too many steps, so the reader cannot tell which of four sizes is more important than which. And steps too close together, so a difference intended as hierarchy reads as an inconsistency. Both are fixed by removing a level rather than by adjusting one.

Texture: it suggests a surface

Texture is the impression of a physical surface: grain, weave, roughness, the fibrous edge of torn paper. It carries associations very efficiently and it carries no information at all, which is exactly the trade to understand before using it.

On screen it is mostly implied: a fine grain, a paper edge, a slight irregularity in an otherwise mechanical arrangement. Used deliberately it makes a design feel made rather than generated. Used to fill space it makes a design feel busy.

Colour: it signals, and it carries an obligation

Colour attaches meaning faster than any other element and it is the only one of the six that comes with an accessibility obligation attached, because a portion of readers will not perceive the difference being relied on.

Which means the working rule for colour is: it may reinforce a distinction, and it may not be the only thing carrying one. If the difference between two states is colour alone, the difference does not exist for some readers. Colour and contrast covers the measurable side of this in full, including the ratios that have to be met and the reason the requirement changes with type size.

The order the elements of graphic design appear in on this page is deliberate. Line, shape and space are structural and free. Scale is structural and cheap. Texture and colour are expressive and carry costs; one in attention, one in accessibility. Reaching for the last two before the first four are resolved is the commonest way a layout goes wrong.