The Whorl stretches sRGB’s wheel into an egg shape constructed with one circle tangent to another half its size. Primaries have the thickest lines of color opponency. Red, Green and Blue form the central axix, but all triads, connected with thing lines, have the same isosceles spacing. Yellow and Violet are perpendicular to the main axis’s midpoint, and they locate Fuchsia and Orange through the tangent point.