Color Field Tool

Color Decoder

Analyze a photo or live camera snapshot to estimate field color notation with live calibration, confidence scoring, CIE Lab and RGB values, and exportable field records.

Image sampler

Tap the target area. The app averages a square sample area and removes outliers.

Sample area

Import Calibration

Reference calibration

No reference chips added yet.

Hue +0.0 stepsLightness +0.0Chroma 1.00×

Advanced calibration

RGB channel gains

Red gain 1.00× Green gain 1.00× Blue gain 1.00× Gamma 2.20

Perceptual correction

Lightness offset +0.0 Hue offset +0.0 steps Chroma scale 1.00× Chroma offset +0.0

Legacy Lab offsets

a* offset +0.0 b* offset +0.0

Saved field records

Saved samples are stored locally in this browser until exported or cleared.

Time	Color notation	RGB	Lab	ΔE	Confidence	Notes