Pick a number of distinct colors. — distinct

This ensures all colors are distinct by packing the (visible part) of the CIELAB color space with the needed number of spheres, and using their centers to generate the colors.

distinct_colors(
  n,
  minimal_saturation = 33,
  minimal_lightness = 20,
  maximal_lightness = 80
)

Arguments

n: The requested (positive) number of colors.
minimal_saturation: Exclude colors whose saturation (hypot(a, b) in CIELAB color space) is less than this value (by default, 33).
minimal_lightness: Exclude colors whose lightnes (l in CIELAB color space) is less than this value (by default, 20).
maximal_lightness: Exclude colors whose lightnes (l in CIELAB color space) is more than this value (by default, 80).

Value

A list with two elements, name containing the color names and lab

containing a matrix with a row per color and three columns containing the l,

a and b coordinates of each color.

Examples

chameleon::distinct_colors(8)
#> $lab
#>             l         a          b
#> [1,] 45.31069  16.83526 -53.526963
#> [2,] 45.31069  59.32081 -53.526963
#> [3,] 45.31069  38.07803 -16.733398
#> [4,] 45.31069  59.32081  20.060166
#> [5,] 80.00000 -68.13584  44.589209
#> [6,] 80.00000 -25.65029 -28.997920
#> [7,] 80.00000 -46.89306   7.795645
#> [8,] 80.00000 -25.65029  44.589209
#> 
#> $name
#> [1] "#3E67C5" "#9C3FC6" "#9B5188" "#C6314D" "#30E36E" "#4DD6FB" "#51DDB6"
#> [8] "#B3D270"
#>