Why Brush Strokes Matter
Watercolor is hard to correct, so confident, simple marks matter. Most paintings are built from a small set of strokes. If you can make a thin line, a thick line, and a stroke that swells and tapers, you can paint leaves, petals, grass, branches, and many other shapes.
What Affects a Brush Stroke
- Brush angle: Holding the brush upright favors thin lines; lowering it lets more of the bristles touch the paper.
- Pressure: Light pressure uses the tip; more pressure fans out the belly of the brush.
- Amount of water and paint: A loaded brush leaves a wet, flowing mark; a drier brush leaves a rougher one.
- Paint consistency: Thicker paint gives stronger color and more defined edges; thinner paint gives pale, soft marks.
- Speed and direction: Fast strokes tend to be looser, slow strokes more controlled.
- Hand position: Holding the brush further back from the ferrule usually gives looser strokes; holding closer gives more control.
- Paper wetness: On dry paper, strokes keep crisp edges. On damp paper, they blur, as covered in wet-in-wet watercolor.
Materials
- A round brush (a size 6 or 8 is a common choice) and optionally a flat brush (see types of brushes for watercolor painting)
- Watercolor paper or a practice pad
- One or two colors in a palette
- Water and a paper towel
Essential Strokes
Thin lines
Hold the brush more upright and use only the tip with very light pressure. Resting the side of your hand on the paper can steady it. Use for stems, grass, and fine detail.
Thick lines
Lower the brush angle and press so the belly spreads. Pull the stroke across the paper. Use for broader shapes and tree trunks.
Thin-thick-thin (compound strokes)
Begin with the tip, press down gradually as you move, then lift back to a point. This one motion makes leaves and petals.
C curves
Practise small and large C shapes, both open to the left and the right. They are the basis for petals, rounded leaves, and wavy outlines.
Circles
Paint rounded shapes with the belly of the brush, in small and large sizes, to practise even pressure.
Flick strokes
Quick strokes that start with pressure and flick off the paper make grass blades or fur. Practise flicking both toward and away from you.
Flat wash
Load plenty of paint, then pull horizontal strokes across the page, overlapping each stroke slightly and picking up the bead of paint at the bottom edge. Tilting the board slightly can help.
Smooth gradient wash
Start with strong color at the top and add more water to the brush with each stroke so the color fades gradually.
Dry brush strokes
Use a brush with little water and drag it lightly across textured paper so the pigment catches only the high points. See our dry brush technique guide for more detail.
A Simple Practice Routine
- Fill a row with thin lines, then a row with thick lines.
- Paint a row of thin-thick-thin strokes.
- Make a row of C curves, then circles.
- Finish with one flat wash and one gradient.
- Repeat for 10 to 15 minutes; short regular sessions tend to help more than rare long ones. A daily painting challenge is one way to keep that habit going.
Turn your strokes into small subjects afterward: a row of leaves along a stem, a small flower, or a simple branch. The easy watercolor painting ideas list has more starting points.
Common Mistakes
- Gripping the brush too tightly, which stiffens strokes.
- Overworking a stroke. Make the mark once and leave it.
- Too much water on the brush, which causes puddles and loss of control.
- Using a very small brush for everything, which makes the painting tight and slow.
- Not testing on scrap paper before committing to the final piece.
FAQ
What are the best brush strokes for watercolor painting? Thin lines, thick lines, and the thin-thick-thin stroke cover a lot of ground, along with flat and gradient washes.
What are the 7 watercolor techniques? Lists vary by teacher. Commonly named ones include flat wash, graded wash, wet-in-wet, wet-on-dry, dry brush, glazing, and lifting.
What is the golden rule of watercolor? It is often described as working from light to dark, or “water follows water.” Either way, it reminds you that you cannot easily remove dark color once it is down.
What are three common mistakes in watercolor? Overworking the paper, using too little pigment, and working on thin paper without preparing it are common ones.