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package api
import "strings"
const hex = "0123456789abcdefABCDEF"
func isValidHexColor(color string) (bool, string) {
if len(color) != 7 {
return false, "color must be hex with length of 7"
}
if color[0] != '#' {
return false, "color must start with '#'"
}
for _, c := range color[1:] {
if !strings.ContainsRune(hex, c) {
return false, "color must start with '#' and contain exactly 6 digits 0-9, a-f, A-F"
}
}
return true, ""
}
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