# BPARAMETERCOLOR System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [B](Help%20System/GSTARCAD/2026/System%20Variables/B/(B).md) ## Function Description: The BPARAMETERCOLOR system variable is used to set parameter color in block editor. | | | | --- | --- | | Type | Strings | | Saved in | Registry | | Initial value | 170 | | Range | 1 ~ 255 | The valid value includes BYLAYER, BYBLOCK, and integers from 1 to 255.The True color is a strings with RGB in front and each value is separated by a comma. It is entered as the following way: RGB:000,000,000 --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables/BPARAMETERCOLOR.html) · © Gstarsoft Co., Ltd.