colorx

README

colorx

Package colorx contains color utilities. It means to be a complement to the standard image/color package.

Documentation

Overview

Package colorx contains color utilities. It means to be a complement to the standard image/color package.

Index

• func ParseHexColor(s string) (c color.RGBA, err error)

Examples

• ParseHexColor

Functions

func ParseHexColor

func ParseHexColor(s string) (c color.RGBA, err error)

ParseHexColor parses a web color given by its hex RGB format. See https://en.wikipedia.org/wiki/Web_colors for input format.

For details, see https://stackoverflow.com/a/54200713/1705598

Example

ExampleParseHexColor shows how to use the ParseHexColor() function.

hexCols := []string{
	"#112233",
	"#123",
	"#000233",
	"#023",
	"#bAC",
	"invalid",
	"#abcd",
	"#-12",
}
for _, hc := range hexCols {
	c, err := ParseHexColor(hc)
	fmt.Printf("%-7s = %3v, %v\n", hc, c, err)
}

Output:

#112233 = { 17  34  51 255}, <nil>
#123    = { 17  34  51 255}, <nil>
#000233 = {  0   2  51 255}, <nil>
#023    = {  0  34  51 255}, <nil>
#bAC    = {187 170 204 255}, <nil>
invalid = {  0   0   0   0}, invalid format
#abcd   = {  0   0   0 255}, invalid format
#-12    = {  0  17  34 255}, invalid format