public static Color AddLuminosity(this Color color, float delta)
{
ColorConverters.ConvertToHsl(color.R / 255f, color.G / 255f, color.B / 255f, out var h, out var s, out var l);
var newL = l + delta;
ColorConverters.ConvertToRgb(h, s, newL, out var r, out var g, out var b);
return(Color.FromArgb(color.A, r, g, b));
}
public static Color GetComplementary(this Color color)
{
// Divide RGB by 255 as ConvertToHsl expects a value between 0 & 1.
ColorConverters.ConvertToHsl(color.R / 255f, color.G / 255f, color.B / 255f, out var h, out var s, out var l);
// Multiply by 360 as `ConvertToHsl` specifies it as a value between 0 and 1.
h *= 360;
// Add 180 (degrees) to get to the other side of the circle.
h += 180;
// Ensure still within the bounds of a circle.
h %= 360;
// multiply by 100 as `ConvertToHsl` specifies them as values between 0 and 1.
return(ColorConverters.FromHsl(h, s * 100, l * 100));
}
public static Color WithLuminosity(this Color color, float luminosity)
{
ColorConverters.ConvertToHsl(color.R / 255f, color.G / 255f, color.B / 255f, out var h, out var s, out var l);
ColorConverters.ConvertToRgb(h, s, luminosity / 100f, out var r, out var g, out var b);
return(Color.FromArgb(color.A, r, g, b));
}
public static Color WithSaturation(this Color color, float saturation)
{
ColorConverters.ConvertToHsl(color.R / 255f, color.G / 255f, color.B / 255f, out var h, out var s, out var l);
ColorConverters.ConvertToRgb(h, saturation / 100f, l, out var r, out var g, out var b);
return(Color.FromArgb(color.A, r, g, b));
}
public static Color WithHue(this Color color, float hue)
{
ColorConverters.ConvertToHsl(color.R / 255f, color.G / 255f, color.B / 255f, out var h, out var s, out var l);
ColorConverters.ConvertToRgb(hue / 360f, s, l, out var r, out var g, out var b);
return(Color.FromArgb(color.A, r, g, b));
}