Spackled wall beige, dried and sanded smooth.
Putty is a muted beige, close to brown.
It can be described as muted, mellow, dull and soft.
Set in black, because black reads best on it.
Putty is a material with high plasticity, similar in texture to clay or dough, typically used in domestic construction and repair as a sealant or filler. Although some types of putty slowly polymerise and become stiff, many putties can be reworked indefinitely, in contrast to other types of filler which typically set solid relatively rapidly.
Read on WikipediaPuTTY is a free and open-source terminal emulator, serial console and network file transfer application. It supports several network protocols, including SCP, SSH, Telnet, rlogin, and raw socket connection. It can also connect to a serial port. The name "PuTTY" has no official meaning.
Read on WikipediaProper noun