Turning Watercolour Paintings into Editable Vectors

Hey creatives, now how many of us use watercolours but dont know how to convert them into vectors but with the watercolour gradation effect. The goal is simple: capture the organic texture of watercolour, clean it up digitally, and convert it into a vector shape you can recolour endlessly. Each stage plays a role in preserving the natural gradients while giving you full control in Illustrator.

Preparing Your Watercolour Artwork

Start with hand‑painted strokes, shapes, or textures. Scan them at a high resolution—300 to 600 DPI works well—so the pigment variations and soft edges are captured clearly. A phone photo can work if the lighting is even and the paper looks neutral.

Once scanned, open the image in Photoshop. This is where you remove anything that might interfere with clean vectorisation. Adjust Levels or Curves to brighten the whites and deepen the pigment. Remove dust or shadows, and isolate the painted areas. Export the cleaned artwork as a PNG with a transparent background so Illustrator focuses only on the paint.

Converting the Artwork in Illustrator

Place the PNG into Illustrator. With the image selected, open the Image Trace panel. The settings you choose here determine how much of the watercolour texture is preserved.

Use these key settings:

• Mode: Grayscale

• Ignore White: On

• More grey values: Better detail

• Method: Auto (for smoother grouping)

Preview the trace until you’re satisfied, then click Expand. Illustrator converts the artwork into vector shapes and groups similar tones together.

Recolouring the Vector for a Custom Look

Once expanded, select the traced artwork and open Recolour Artwork. Reduce the number of colours to one. This simplifies the entire piece into a single editable tone. Then choose any swatch colour to replace it. The watercolour texture remains intact, but the hue becomes completely flexible.

This step is what makes the technique so powerful. You can turn a blue wash into terracotta, emerald, charcoal, or any brand colour instantly, without repainting or rescanning.

What You End Up With

The final result is a vector that retains the softness, irregularity, and depth of real watercolour while behaving like any other Illustrator object. It scales cleanly, recolours easily, and integrates seamlessly into logos, packaging, posters, or digital illustrations.