Greetings- I've grown Datils for about 8 years. They turn from green to light green to lemon-yellow & then (usually) the yellow darkens slightly. If you have the HSV color-picker on your Web browser, call it up & set the color angle to about 38 degrees...that's a pretty close match. IMHO, Datils are ready to use when they reach a full lemon-yellow. Darker ones may be very slightly sweeter but it's hard to tell the difference. My really mature Datils often develop 2 or 3 very slight bulges from top to bottom instead of remaining completely conical, reminiscent of a rattlesnake rattle! See the last image in my small gallery at http://www.phys.ufl.edu/~dunnam/Chilie02.html. Best wishes, Gene *************************************************** * F. Eugene (Gene) Dunnam * * Gator Slide Farm <dunnam@phys.ufl.edu> * * 104 SE 138 Ave (352) 466-3538 * * Micanopy, FL 32667 * * <http://www.phys.ufl.edu/~dunnam/Welcome.html> * ***************************************************