The hexadecimal color code #8721e1 is a shade of blue-magenta. In the RGB color model #8721e1 is comprised of 52.94% red, 12.94% green and 88.24% blue. In the HSL color space #8721e1 has a hue of 272° (degrees), 76% saturation and 51% lightness. This color has an approximate wavelength of 565.95 nm.
It is a widely accepted notion among painters that it does not matter what one paints as long as it is well painted. This is the essence of academicism. There is no such thing as good painting about nothing.
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To send light into the darkness of men's hearts - such is the duty of the artist.
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Don't be an art critic, but paint, there lies salvation.