Required library edition:
Required library file: dhtmlxgrid.js

sets the text color for the cell

• value- (string) the color value.
  Can be specified as:
  • Predefined/Cross-browser color name
  • Hexadecimal color
  • RGB color

mygrid.cells("row1",1).setTextColor('red');          // Predefined/Cross-browser color name
mygrid.cells("row1",3).setTextColor('#ff0000');      //Hexadecimal color
mygrid.cells("row1",2).setTextColor('rgb(255,0,0)'); //RGB color

See also: getTextColor