For other related logos and images, see:
Rai 2 was launched in 1961 as Secondo Programma.
Just like Rete/TV1, it uses a colorized version of the precedent logo.
Rete 2 changed its name to Rai Due in 1983. It launched a new logo corresponding with Rai's rebranding in the same year, which uses red and orange as its colors. In the bumpers, the logo was accompanied with a orange-red cube.
In this logo, the Rai Due typeface was modified (as with the Rai corporate logo at that time) and the cube officially became part of the logo.
This logo, which drops the cube, uses Rai's newly-launched butterfly symbol, and maintains its now-standard red color, was introduced in 2000; during the TV shows it was all white until September 21, 2003, when it became white with a red glow around.
On May 18, Rai Due changed its name to Rai 2 (but is still called Rai Due in a way since due is Italian for two/2), introducing a new logo based on two squares, but keeping the same, historic color of the channel: red. Although the logo was introduced on May, they still used the 2003 idents until the new bumpers appeared on November of the same year that appeared in 16:9 instead of their predecessors.
On September 12, 2016, Rai 2, along with Rai 1, Rai 3, and Rai 4, redesigned its logo and launched a new graphics package. The new design of Rai 2's logo maintains Rai's corporate logo, drops the second square at the right and gives an entirely new look for the number 2. The channel's iconic red color was maintained, albeit in a different shade.