Dear me, not again...
Can we please stop referring to standard LEDs lighting from a particular voltage?
It has been explained on this and other forums time and time again that this topic needs to be considered in a different manner.
A controlled current is what lights an LED, and that current flow results in a voltage drop across the LED, the value of which varies with LED colour and internal chemistry.
Clearly, the supply voltage needs to be at least that which the LED is going to drop when lit, but any more voltage beyond that is then dropped by a further device, used to perform the current control - usually a resistor.