SNOW "FFFFFF" AND BASIC "000000" HTML REQUIRES YOU TO WRITE COLOR NUMBERS IN BASE 16! BINARY (BASE 2) USES 0 AND 1 DECIMAL (BASE 10) USES 0,...,9 HEXADECIMAL (BASE 16) USES 0,..9,A,B,C,D,E,F. FF = 15x161 + 15x160 = 255 SO, 'FFFFFF" = 255,255,255 = WHITE BECAUSE 16 IS A POWER OF 2, CONVERTING BETWEEN BINARY AND BASE 16 IS EASY, BUT.... PAGESPINNER SAVES THE DAY BY PROVIDING A MENU ITEM THAT INSERTS THE APPROPRIATE HEXADECIMAL FOR ANY COLOR YOU PICK.

The Web: Technologies and Techniques Links to other course pages: CS 105 Home Page CS 105 Lecture Schedule CS 105 On-line Discussion Group: All discussions Discussion relating to this lecture topic Williams College Department of Computer Science

This page is part of a section of lecture slides related to " HTML Color and Image Options " within the topic "Using and Understanding Digital Images". Other slides within this section and other sections of slides for the topic "Using and Understanding Digital Images" can be accessed using the links below. Basics of HTML Image Tags Images Digital Images DIGITAL IMAGES PAINT BY NUMBER DIVIDING INTO PIXELS SAMPLING WITHIN PIXELS PIXEL RESOLUTION Why GIF? Why JPEG? "RGB" COLOR WHY 255? 24-BIT COLOR A STATISTICAL ANALYSIS OF "GREEN EGGS AND HAM" KEEPING THE DIGITS IN DIGITAL LOW-FAT EGGS AND HAM 8-BIT COLOR 8-BIT VS. 24-BIT "LOSSLESS" COMPRESSION TECHNIQUES "LOSSY" COMPRESSION HTML Color and Image Options SNOW "FFFFFF" AND BASIC "000000" HTML COLOR ATTRIBUTES OPTIONAL ESSENTIALS VERTICAL IMAGE ALIGNMENT HORIZONTAL IMAGE ALIGNMENT LINE BREAKS