This is not natural light, nothing is from Webb. The infrared image combines data from two filters which are shown in blue and orange,. The planet displays a blue hue in the resulting representative-color image which is similar to the planet’s actual color. But in reality Uranus is more a pale blue/green.
This is only the third facility to ever image the rings of Uranus: Voyager 2 spacecraft in 1986; and the Keck Observatory with advanced adaptive optics.