Art Tools by Lewis

Tools built for
artists

Precision colour analysis, palette planning, and perceptual training — designed for painters, illustrators, and colour-conscious creatives.

Try Gamut Analyser Browse all tools
Tools

Colour Analysis

GA
Live
Gamut Analyser
Upload any painting or reference image. Extract dominant colours, visualise the gamut shape on a colour wheel, and export a full report. Supports HSB colour space with close-up gamut mapping.
Colour · Analysis · Export
VP
Soon
Value Planner
Map the tonal structure of your composition before you paint. Convert to greyscale, identify value groupings, and plan your light logic.
Value · Composition
CM
Soon
Colour Mixer
Simulate real pigment mixing using subtractive colour models. Plan your palette before touching paint.
Mixing · Pigment · Palette
Art Games

Train Your Eye

HG
Soon
Hue Guesser
You're shown a colour — guess its hue angle on the wheel. Builds rapid colour identification instinct over time.
Hue · Speed · Training
VM
Soon
Value Match
Match colours by value, stripped of hue. Trains your ability to see lightness independently — one of the most important skills in painting.
Value · Perception
PB
Soon
Palette Builder
Timed challenges where you build a harmonious palette from constraints. Sharpens decision-making and gamut awareness under pressure.
Palette · Speed · Harmony