In the Object Color drop-down list, click
a color to draw all new objects in that color, or click Select Color
to display the Select Color dialog box and do one of the following:
On the Index Color tab, click a color
or enter the color name or number in the Color box.
On the Index Color tab, click BYLAYER
to draw new objects in the color assigned to the current layer.
On the Index Color tab, click BYBLOCK
to draw new objects in the current color until they are grouped
into a block. When the block is inserted into the drawing, the objects
in the block acquire the current color setting.