Local colour only: ignoring reflected light and temperature
“My red apple looks like a red sticker stuck on the paper; it does not feel real or alive in the room.”
What is happening
The object is painted using only its local hue mixed with black for shadow and white for highlight. The colour remains uniform across the form, ignoring the colour of the light source, the surface beneath it, and neighbouring walls. The object looks isolated from its setting.
Every illuminated object exists within an environment of bouncing photons. Light reflecting off a blue tabletop will cast blue tints into the shadow side of a red apple, while warm sunshine will warm the lit planes. If an artist only paints the intellectual 'local colour', the form fails to integrate into the ambient light of the scene.
The 30-second test
Examine the shadow edge of the object; if it is merely a darker, duller version of the light side, you have missed ambient bounce.
How to fix it
- Observe what coloured surfaces surround your object.
- Identify the shadow plane facing those surrounding surfaces.
- Apply a gentle glaze or scumble containing the surrounding colour directly into that shadow plane.
- Ensure the highlight reflects the colour temperature of the main light source rather than pure white.
Can it be saved? Rescue
Glaze subtle environmental colours into the shadow side and warm or cool the lit planes according to your light source.
Drill: Coloured Ground Bounce Study
About 25 minutes. You need:
- White sphere or egg
- Bright coloured card
- Paints or pastels
Place a white egg on a sheet of bright yellow paper under a single lamp. Paint the egg, paying special attention to the strong yellow light bouncing up into the underside shadow. Note how little local white remains.
Background reading
General teaching sites on this subject. They are a reading list, not page-level citations for this advice.
The advice is a generated synthesis of common teaching practice and has not been checked line by line against any source; treat times and difficulty as estimates.