Reference analysis for oil painters
Five tools to decode your reference photo before you pick up a brush.
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The tools
Group your reference into 2 to 10 value steps. See the big shapes immediately, in grayscale, umber, or full color. This is what most painters skip and then struggle with.
Tap any spot to find the closest paint match from your actual palette. Or switch to Value Map mode and plot up to 10 points to see your reference's full value range mapped on a scale.
See the warm and cool zones mapped across your reference, with breakdowns showing the temperature balance in your lights, mids, and shadows. Get concrete advice on canvas toning and color strategy.
Reduce everything to a 2- or 3-value pattern with live ratio readouts. If your notan doesn't read, your painting won't either. Check it here before committing hours on canvas.
Plan your composition with common canvas ratios and composition guides (Rule of Thirds, Golden Ratio, Diagonals). Find the strongest crop before you start drawing.
Your photos stay on your device. BrushLens runs entirely in your browser. Nothing is uploaded, stored, or sent anywhere.
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or $59/year · or $99 lifetime
All five tools, unlimited use. Your photos never leave your device.
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Decode your reference before you pick up a brush.
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