colors package:grDevices R Documentation _C_o_l_o_r _N_a_m_e_s _D_e_s_c_r_i_p_t_i_o_n: Returns the built-in color names which R knows about. _U_s_a_g_e: colors() colours() _D_e_t_a_i_l_s: These color names can be used with a 'col=' specification in graphics functions. An even wider variety of colors can be created with primitives 'rgb' and 'hsv' or the derived 'rainbow', 'heat.colors', etc. _V_a_l_u_e: A character vector containing all the built-in color names. _S_e_e _A_l_s_o: 'palette' for setting the 'palette' of colors for 'par(col='__')'; 'rgb', 'hsv', 'hcl', 'gray'; 'rainbow' for a nice example; and 'heat.colors', 'topo.colors' for images. 'col2rgb' for translating to RGB numbers and extended examples. _E_x_a_m_p_l_e_s: cl <- colors() length(cl); cl[1:20]