knitr::opts_chunk$set( collapse = TRUE, comment = "#>" )
Color is a mix of wavelengths
Numerically represented as coordinates in a color space. Common color spaces: sRGB, CMYK, CIE L*a*b*
Color spaces associated with a color representation mode: RGB, CMYK, Lab, HSV, HCL.
Difference between how the eye perceives color and how we represent it. Reprensentations meant for the computer (e.g. RGB) do not relate to how we perceive colors and that can result in mis-representation of the changes in the data along a color scale. Typical of rainbow() [refs].
Great care taken in the analysis of data. Equal care should be taken in the representation of the results
chroma is not a color management system, it only knowns sRGB. It helps by providing functions in color modes that are perceptually correct (HCL) and access to color scales designed in such spaces or with color perception in mind. It also provides access to corner use cases (temperature, wavelength, topo scales). Based on chroma.js.
manipulate individual channels
darken/lighten
saturate/desaturate
compute and change luminance
make transparent
contrast, distance, CMClc, Delta-E
description
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