An outline drawing uses lines to describe the outer edges of a subject and, sometimes, important edges within it. At its simplest, you can think of an outline as the boundary that separates one shape from another or separates the subject from the space around it.
Outlines are not inherently bad. They can make a drawing clear, graphic, bold, or easy to read. The problem begins when every edge is given the same dark, continuous line whether that edge is actually important or not.
That’s when a three-dimensional subject can start looking more like a cutout.
I find it more useful to think of outlining as one tool among many. Sometimes I want a strong contour. Other times I’ll let an edge disappear into shadow, describe it with a change in value, or suggest enough of the shape that the viewer completes the missing information.
What Is an Outline in Art?
In art, an outline is a line that describes the visible boundary of a shape or subject.
If you draw a simple apple using one continuous line around its outside edge, that line is functioning as an outline. The same thing happens when you draw the silhouette of a person, animal, leaf, building, or object.
Outlines can also appear inside a subject. A line separating an arm from a torso, for example, may help clarify where one form overlaps another.
That means outlining can serve several useful purposes:
- separating one shape from another
- making a silhouette easier to read
- clarifying overlaps
- simplifying complicated subjects
- creating a graphic or stylized appearance
- directing attention toward important edges
It belongs to the larger vocabulary of line, shape, value, and form that I cover in my drawing techniques guide.
Outline Drawing and Contour Drawing Are Closely Related
The terms outline and contour are often used in similar ways, but I don’t always think of them as exactly the same thing.
An outline usually emphasizes the outside boundary of a shape.
A contour line can do that too, but contour drawing can also follow important changes across the form. A line might describe the edge of a cheek, the fold where an arm bends, or the transition between overlapping parts of an object.
In practice, the distinction matters less than understanding what each line is describing.
I don’t want to add a line simply because I know an object has an edge. I want to look at what is actually happening visually at that edge.
Why Heavy Outlines Can Make a Drawing Look Flat
Objects in real life generally aren’t surrounded by black lines.
We perceive their edges because something changes: the value becomes lighter or darker, the color changes, one form overlaps another, the surface turns away from us, or the background creates contrast.
If I replace every one of those different relationships with the same dark line, I remove some of that information.
Imagine drawing a face and giving the jaw, nose, lips, eyelids, ears, and every strand of hair exactly the same thick outline. Those features begin competing equally even though they don’t have equal visual importance.
The drawing can start looking diagrammatic rather than dimensional.
An Edge Doesn’t Always Need a Line
One of the biggest changes in my own drawing is separating the idea of an edge from the idea of a line.
An edge can exist because two values meet.
Draw a dark object against a light background and the boundary is already visible. You may not need to trace another line around it.
The same thing happens within the subject. A shadow under the jaw may describe the lower edge of the face without a separate contour line. A dark shape behind a light arm can make the arm readable simply through contrast.
If you want to practice creating form through value instead of contour alone, my guide to shading with a pencil is a useful companion to this.
Some Edges Can Disappear Completely
I don’t think every boundary in a drawing has to remain visible from beginning to end.
If the dark side of an animal merges into a dark background, I might allow part of its silhouette to disappear. The viewer can usually understand that the animal continues through the missing area.
This is sometimes called using lost and found edges: one part of the contour is clearly visible while another part becomes soft or disappears.
It can make a drawing feel considerably more natural than tracing the entire silhouette at equal strength.
It also relates closely to implied shapes, where enough visual information remains for the viewer to mentally complete an incomplete boundary.
Line Weight Lets You Keep an Outline Without Making It Mechanical
You don’t have to remove outlines entirely to create depth.
Changing the strength of the line can make a huge difference.
A contour might become darker where one object overlaps another and lighter where the form turns toward the light. Some sections might become thin enough that they nearly disappear.
Now the outline isn’t simply surrounding the object. It’s carrying information about emphasis, light, overlap, and space.
I explore this much more specifically in how to draw line weight.
The Quality of the Line Matters Too
Two outlines can follow exactly the same shape and still feel completely different.
One might be slow, smooth, and controlled. Another might be broken, searching, scratchy, energetic, or made from several overlapping attempts.
That physical character is part of what gives a drawing personality.
This is why I don’t automatically clean every sketch into one perfect contour afterward. Sometimes the searching marks are more interesting than the final corrected line.
If that distinction interests you, see my guide to line quality in drawing.
Outlines Work Well When You Actually Want a Graphic Look
There are plenty of situations where a strong outline is exactly the right choice.
Comics, animation drawings, graphic illustration, cartoons, logos, tattoo designs, coloring-book images, and many forms of decorative drawing deliberately use clear contours.
A bold outline can simplify complicated information and make the silhouette immediately readable.
So I wouldn’t say that realistic drawing is good and outlined drawing is bad. They’re different visual choices.
The useful question is whether the outline is helping the kind of drawing you’re trying to make.
Look at the Silhouette Before You Draw Interior Details
An outline can actually be very useful at the beginning of a drawing because it helps you judge the overall shape.
If I’m drawing an animal, for example, I may initially pay close attention to the relationship between the head, back, belly, legs, and tail as one large silhouette.
That doesn’t mean I have to preserve that initial contour at full strength in the finished drawing.
Once the structure is working, parts of that outline can be strengthened, softened, replaced with tone, or removed entirely.
This is one reason I like approaching a drawing analytically rather than thinking of the initial line as something that can never change. I discuss that way of observing more in my analytical drawing guide.
Try Drawing the Same Object Three Different Ways
A simple exercise makes the effect of outlining very obvious.
Choose one object with a recognizable silhouette: a shoe, leaf, mug, shell, fruit, or your own hand.
Draw it once using a continuous outline around everything.
Draw it again, but vary the line weight. Let some sections become dark and others stay thin or broken.
For the third version, try describing as many edges as possible through patches of value rather than contour lines.
Put the three drawings beside each other.
You may prefer one stylistically, but the useful part is noticing how differently the same subject feels when its boundaries are described in different ways.
Drawing From Observation Helps Break the Habit of Outlining Everything
If you always think, “I’m drawing an apple,” it’s easy to reach for a familiar apple-shaped outline.
When I concentrate instead on the specific apple in front of me, I start noticing that one edge is sharp against the background, another nearly disappears, the underside is defined mostly by shadow, and the brightest side may have almost no visible contour at all.
Observation gives me more options than the symbol I already have in my head.
That’s one reason drawing from life can help loosen rigid outlines. You’re responding to the particular relationships in front of you rather than applying the same edge treatment everywhere.
Loose Drawing Doesn’t Mean Avoiding Outlines
I also wouldn’t equate expressive drawing with simply eliminating contours.
A drawing can contain very strong outlines and still feel energetic. What often makes the difference is whether those lines vary, respond to the subject, and carry some rhythm rather than behaving like a uniform border.
Quick sketches can be useful because they force you to prioritize. You don’t have enough time to carefully describe every edge, so some lines become stronger while others remain incomplete.
That kind of selective drawing is something I explore further in expressive drawing.
Before Adding an Outline, Ask What Is Creating the Edge
This is the question I find most useful.
Is the edge visible because of a strong change in value? Is one object overlapping another? Does the contour actually disappear? Is this line describing a change in form? Or do I simply want a bold graphic mark there?
Sometimes the answer is that an outline is exactly what the drawing needs.
Other times the surrounding values are already doing the job.
Once you stop treating every edge as something that automatically needs to be traced, outlining becomes much more useful. It stops being a default and becomes a deliberate drawing decision.