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Convert R Colors to HSV

Source: R/color-conversions.R
colToHSV.Rd

Convert any valid R color specification to HSV.

Usage

colToHsv(col, useAlphaChannel = FALSE)

Arguments

col

vector of valid R colors.

useAlphaChannel

logical indicating whether the alpha channel should be included.

Value

Numeric HSV matrix with one column per color. With useAlphaChannel = TRUE the alpha channel is added as fourth row, scaled to the range from 0 to 1 like the other rows.

See also

color-conversion-overview

Examples

colToHsv(c("tomato", "royalblue"))
#>         [,1]      [,2]
#> h 0.02536232 0.6250000
#> s 0.72156863 0.7111111
#> v 1.00000000 0.8823529

# the alpha channel is added as fourth row, on a scale from 0 to 1
colToHsv("#FF634780", useAlphaChannel = TRUE)
#>             [,1]
#> h     0.02536232
#> s     0.72156863
#> v     1.00000000
#> alpha 0.50196078