Color - Palette

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A palette is a finite number of color used in a design.

In web design, the palette is created from the choice of a theme type (color scheme) such as monochromatic, complement, analog,…

Example: Monet Painting



Qualitative palettes for categorical data

Qualitative palettes are sets of colors for depicting different categories, i.e., for coding a categorical variable.

To give the same perceptual weight to each category, chroma and luminance are kept constant and only the hue may vary for obtaining different colors (which are consequently all balanced towards the same gray).

Qualitative Palette

Colorspace Examples for qualitative palettes. Hue is varied in different intervals for given Chroma = 50 and Luminance = 70.


Sequential and diverging palettes for numerical variables:

  • Sequential palettes are used for coding numerical information that ranges in a certain interval where low values are considered to be uninteresting and high values are interesting.
  • Diverging palettes are also used for coding numerical information ranging in a certain interval however, this interval includes a neutral value.

They represents a scale (an order is better, no ?)


Discover More
Monochromatic Landing
Color Theme / Scheme

A color theme / scheme is a combination of colors used in an application design. They are palette but formed from only a couple of colors. The main types of color schemes are: , , . ...
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scale in D3. D3’s scales simplify visual encoding. They map data value (a domain) to pixels value (a range). These scales supports both ordinal and quantitative (linear, logarithmic, exponential,...
Data System Architecture
How to visualize categorical data

nominal (categorical data) are mostly visualized with a nominal palette of color. The color should have different hue to be able to to distinguish them from each other.
Inkscape Layout
Inkscape - Palette

in Inkscape Colors can be dragged from the palette onto objects to change their Fill. Using the Shift key while dragging will change the Stroke color instead
Colorspace Choose Color Gui
R - Colorspace (Manipulation)

Color Space Manipulation. The package colorspace provides various functions providing perceptually-based color palettes for coding: categorical data (qualitative palettes) and numerical variables...
D3 Scale Domain Range
Viz - Scale

Scale in Visualization Line with numbers (Major and minor Grid) Scale map: data value (a domain) to pixels value (a range). Scale permits data (the domain) to fit the chart area (the pixels...

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