(x .(adjust-hue ..(blue-from-hsl ...(alpha ....(vcos .....(vconcat ......(vsqrt [1.8774 0.1137]) ......(hsl-from-rgb .......(t ........(blue-from-hsl [-2.21 -1.4454 2.9851 -0.1364]))))))) ..(gradient ...(normalize pos))))