Why Colour Mixing Matters

Colour mixing is the foundation of painting. Understanding how to combine colours not only helps artists achieve accurate tones but also unlocks endless creative possibilities. From beginners learning the basics to professionals refining their palettes, mastering colour mixing is an essential step in developing your artistic voice. At The Deckle Edge, we stock everything you need to explore the full spectrum of colour.

The Colour Wheel Explained

At the heart of colour mixing lies the colour wheel, a tool that maps out the relationships between colours. Primary colours (red, blue, yellow) form the base, while secondary colours (green, orange, purple) are created by mixing them. Tertiary colours expand the wheel further. Artists use the colour wheel to understand harmony, contrast, and balance.

Warm and Cool Colours

One of the key principles in colour mixing is understanding warm and cool tones. Warm colours, like reds and yellows, add energy and intensity, while cool colours, like blues and greens, bring calmness and depth. Mixing a warm blue with a warm red produces vibrant purples, while cooler variations create muted, subtle shades. Experiment with paints from our art materials collection to see the difference first-hand.

Practical Colour Mixing Tips for Beginners

Colour mixing doesn’t have to feel overwhelming. Here are a few tips to get started:

• Begin with a limited palette of primaries plus white and black.
• Keep a swatch journal to track your mixes.
• Mix small amounts first to avoid wasting paint.
• To practice, stock up on sketchbooks and paper from our paper collection.

How to Use the Colour Wheel in Your Artwork

The colour wheel isn’t just theory, it’s a guide for everyday painting. Complementary colours (like red and green) create strong contrasts. Analogous colours (like blue, blue-green, and green) build harmony. *Triadic and split-complementary schemes add balance with energy.

Choosing the Right Paints for Colour Mixing

Not all paints behave the same when it comes to mixing. Acrylics blend quickly and dry fast, oils allow long working times for subtle blends, and watercolours rely on transparent layering. Explore professional sets from top art brands like Schmincke, Winsor & Newton, and Daler-Rowney to build a versatile toolkit.

Expanding Your Creativity with Colour

Once you’ve mastered the basics of colour mixing, you can experiment with unconventional blends, glazing, or even metallics. Try combining colour exercises with creative projects from our craft and hobby section. For inspiration and step-by-step guides, visit our Blog or sign up for hands-on workshops and events.

Troubleshooting Colour Mixing: Quick Fix Guide

Problem	Why It Happens	Quick Fix
Colours look muddy/dull	Too many pigments mixed, or complements cancelling each other	Use fewer pigments (2–3 max). Clean brush between mixes. Try transparent pigments.
Mix too bright/intense	Overloaded with pure primaries	Add a tiny touch of its complement to tone it down (e.g. red → add green).
Skin tones too orange	Overuse of reds/yellows	Add a cool blue or green to neutralise, then layer thin glazes for depth.
Greens look artificial	Using only phthalo + cadmium yellow	For natural greens, try ultramarine + yellow ochre, or sap green + burnt sienna.
Blacks look flat	Tube black used alone	Mix your own black from ultramarine + burnt umber, or phthalo green + alizarin. Adds vibrancy.
Shadows feel “dead”	Too much black added	Use complements or cooler versions of your main colour for shadows (e.g. warm red → add cool blue).
Painting lacks harmony	Too many unrelated pigments used	Limit to a 3–4 colour palette (e.g. *Zorn palette). Builds unity across the canvas.
Can’t match a colour again	Mixing “by eye” without tracking	Keep a swatch journal. Note pigment names + ratios.

Pro Tip: Always test your mix on scrap paper/canvas before committing. Lightness (value) and temperature (warm vs cool) matter as much as hue.

Pro Artist Tip: Harmony isn’t about strict rules — it’s about choosing relationships that support the mood of your painting. Experiment, then adjust saturation, value, and dominance to make the scheme work for your subject.

Lessons from the Colour Masters

Artist	Colour Approach	Try This Exercise
Leonardo da Vinci	Observed how light, shadow, and distance shift colours (atmospheric perspective).	Paint the same object at different times of day and note how the colours shift with changing light.
J.M.W. Turner	Used pure, luminous colour to create drama and emotion.	Take a landscape photo and exaggerate the colours for mood (stormy blues, fiery oranges).
Eugène Delacroix	Explored complementary colour contrasts to intensify impact.	Mix and place complementary pairs side by side (red/green, blue/orange) to see them vibrate.
Claude Monet	Studied how colour changes with natural light across times and seasons.	Paint or sketch the same subject in morning, noon, and evening light. Compare palettes.
Georges Seurat	Applied Pointillism: optical mixing of small dots of pure colour.	Create a small study using dots of complementary colours. Let the eye blend them from a distance.
Wassily Kandinsky	Explored emotional and symbolic associations of colour.	Make an abstract painting using only colours that reflect a specific emotion (joy, sadness, anger).
Josef Albers	Analysed how colours shift when placed next to each other.	Paint a single colour swatch on two different backgrounds. Observe how it appears to change.
Mark Rothko	Built emotional depth with large, subtle fields of colour.	Fill a page with just two or three layered colours. No objects, only atmosphere.

Pro Tip: Each of these artists treated colour as more than paint. It was a tool for emotion, perception, and storytelling.

Need Help Choosing Your Colours?

If you’re unsure which paints or supplies to start with, our expert team can guide you. Get in touch via our contact page for advice tailored to your artistic needs.