Have you ever finished a watercolor painting and felt that something wasn't quite right?
The colors looked accurate.
The drawing seemed correct.
You carefully followed your reference photo.
And yet the painting still felt flat.
If this sounds familiar, you're not alone.
Over the years of teaching watercolor, I've noticed that many artists believe realism comes from choosing the right colors.
They spend hours searching for the perfect pigment, the perfect color combination, or the perfect reference photo.
But there is something even more important than color.
It's called tonal values.
Understanding tonal values can completely transform your watercolor paintings and help you create depth, form, and realism, even with the simplest subjects.
Let's take a closer look at why.
What Are Tonal Values?
Tonal values describe how light or dark something appears.
Every object we see is affected by light.
Where the light hits a surface directly, we see lighter values.
Where the light is blocked, we see darker values.
Those relationships between light and dark help our eyes understand shape, depth, and form.
Imagine drawing a simple leaf outline.
Even if the shape is correct, it doesn't look realistic.
What changes everything is the way light moves across its surface - the highlights, the gentle transitions, and the shadows.
That's what gives an object volume and makes it appear three-dimensional.
In many ways, tonal values are what make a flat piece of paper come alive.
The Four Basic Value Areas
When I teach tonal values, I often simplify them into four main areas:
- Highlight – the lightest area where light directly hits the object
- Half-tones – the middle values that transition away from the light
- Shadow – the darkest area where the object turns away from the light
- Reflected Light – a small lighter area within the shadow created by surrounding light bouncing back onto the object
Once you begin identifying these areas, you'll start seeing them everywhere.
A leaf on your morning walk.
A flower in the garden.
A piece of fruit on your kitchen table.
Suddenly, you're no longer seeing only colors.
You're seeing light.
And that's when painting becomes much easier.
Why Color Is NOT the Most Important Thing
This often surprises my students.
You can paint an object using unexpected colors and it can still feel convincing if the tonal values are correct.
Imagine painting a flower blue.
If the light and shadow relationships are accurate, your brain will still understand the form.
But the opposite isn't true.
You can use the perfect color mixture and still struggle to create depth if the values aren't working.
Values create structure.
Color enhances it.
That's why I always encourage students to learn to see light before they focus on color.
How I Use Tonal Values in Watercolor
When I'm painting, I almost always begin by identifying the shadow areas first.
The shadows tell me where the strongest contrast exists.
Once I know where the darkest areas belong, I can gradually build the lighter values around them.
In watercolor, this often means:
- Preserving the lightest areas of the paper
- Establishing shadow shapes early
- Creating smooth transitions between dark and light areas
- Building contrast gradually through layers
I often start by placing color in the shadow areas and then softening it as I move toward the light.
Shadows are usually strongest where they begin and gradually fade as they transition into the lighter parts of the subject.
Understanding this simple principle can instantly make a painting feel more natural and believable.
Sometimes, despite our best planning, an area becomes a little too dark.
The wonderful thing about watercolor is that light can often be brought back.
By using a clean, damp brush, it's possible to gently lift pigment from the paper and create highlights, soften edges, or adjust small areas.
I still use lifting regularly in my own paintings. It's a simple technique, but it can make a surprising difference. In this short lesson, I demonstrate how tonal values work and how I use lifting in watercolor to create light, form, and depth.
A Simple Exercise to Practice Today
The next time you sit down to paint, choose a very simple subject.
An egg.
An apple.
A leaf.
Before thinking about color, ask yourself:
- Where is the lightest area?
- Where is the darkest area?
- Where are the middle values?
- Is there any reflected light?
Try painting the subject using only one color.
This removes the distraction of color mixing and allows you to focus entirely on values.
You may be surprised by how much more clearly you begin to see the structure of your subject.
Learning to See Light
When we first begin painting, it's natural to focus on color.
We search for the perfect green for a leaf, the exact shade of pink for a flower, or the right blue for a summer sky.
But what gives a painting depth and dimension is often not the color itself, it's the way light and shadow shape what we see.
The highlight on a petal.
The shadow beneath a leaf.
The soft transitions that turn a flat shape into something that feels alive.
The next time you're observing a flower or even a simple object on your desk, try looking for the lightest area first.
Then find the darkest shadow.
Notice how the values gradually shift between the two.
This simple habit can strengthen your observation skills and help you make better painting decisions long before your brush touches the paper.
If you'd like to explore tonal values, layering, color mixing, brush control, and many other watercolor foundations, you can download my free Watercolor 101 Guide.
The next time you paint, pay attention to where the light falls before reaching for a color mixture. You may be surprised by how much easier it becomes to understand what you're really seeing.
With love,
Kristine 💚
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