colorbar
Heatmap's visual key
A colorbar is a legend showing how colors in a visualization map to data values.
Common in scientific graphics, heat maps, and satellite imagery, it typically appears as a gradient strip alongside the main figure with labeled tick marks indicating the range: The colorbar showed temperature from blue (cold) to red (hot).
hue
Color's specific character
- saturationState of complete permeation
- gradientRate of change across space
- spectrumContinuous range of values
tint · shade · tone · chroma · pigment · RGB · CMYK · value · gamut · primary
legend
Unverified traditional tale
- scaleMeasure of relative size
- gradientRate of change across space
- heatmapColor-scaled data visualization
spectrum · axis · plot · chart · range · colormap · key · reference · data · graph