21 lines
408 B
Go
21 lines
408 B
Go
package utils
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import "math"
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func IsDarkColor(r, g, b uint8) bool {
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rC := 0.299 * math.Pow(float64(r), 2)
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gC := 0.587 * math.Pow(float64(g), 2)
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bC := 0.114 * math.Pow(float64(b), 2)
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lum := math.Sqrt(rC + gC + bC)
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return lum <= 130
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}
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func IntToRgb(color uint32) (uint8, uint8, uint8) {
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b := color % 256
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g := color / 256 % 256
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r := color / (256 * 256) % 256
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return uint8(r), uint8(g), uint8(b)
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}
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