There is no particular formula for drawing hair; it is simply a matter of observation. Our technique requires a close study of the effects of line, tone and texture on the form of the hair. You also need some understanding of the characteristic qualities of charcoal and chalk and what it capable of as an artistic medium. You can find out more about this on our page: Charcoal Portraits - Materials and Techniques.
Please follow our steps below to explore the process and techniques used to build up our charcoal and chalk drawing of the hair.
Sketch the outline of the head
Using a charcoal pencil, we start our drawing of the hair with an outline of the head.
You can find out more about drawing the basic proportions of a head and the position of its features at the following pages on our site:
Sketch the hair lightly in line
Next we lightly sketch the hair in lines that follow its shape and volume.
It is helpful to spray these lines with some fixative to so that they are not easily erased when we work over them in later stages of the drawing.
Establish the basic tones
At this point we lightly shade any dark tones in and around the hair with a soft stick of charcoal.
We then smudge these with a tortillon (paper blending stump), tissue or finger to establish a flat unified tone upon which we can build up our drawing.
Re-establish the line drawing and strengthen, balance and blend tones
Now we need to re-establish any of the line drawing that we lost in the previous stage and reinforce the cut and style of the hair with stronger lines.
We also start to balance and blend the tones of the hairline with the complexion of the forehead.
You need a subtle transition of tones between the hair and the forehead, otherwise the hairline will look unnatural.
Intensify the detail of the hair
At this stage we intensify the detail of the hair with layers of rhythmic lines that follow the direction of its growth and style.
We build up this detail using a sharp charcoal pencil. It is important to draw the hair with as much speed and confidence as possible in order to reflect its natural bounce and vitality.
We also darken the deepest areas of tone with a soft charcoal stick and gently merge the texture of hairline with the forehead.
Apply the lght tones of the hair with an eraser
Once we have built up the detail of the hair to a satisfactory density, we are ready to apply the light tones that will accentuate its form.
If you cut an eraser to form a sharp edge, you have the ideal tool for drawing streaks of light in an area of dark charcoal. It is the perfect technique for picking out the individual strands of hair and building up a realistic texture.
Add the final highlights with white chalk
Finally, we use a stick of white chalk that has been sharpened to a fine point to add our highlights to the hair and surrounding skin. This enhances the tone, texture and form of the hair, raising the realism in our drawing to its highest pitch.
In our illustration you can see how our charcoal drawing is built up in a series of layers that gradually refine the line, tone and texture of the image to create a convincing representation of the hair.