Learning Web Design Third Edition- P7:Everything you need to know to create professional web sites is right here. Learning Web Design starts from the beginning defining how the Web and web pages work and builds from there. By the end of the book, you'll have the skills to create multi-column CSS layouts with optimized graphic files, and you'll know how to get your pages up on the Web. | Monitor Color Figure 3-11. On 16-bit monitors RGB colors get shifted around. In this figure although the graphic in the foreground uses the identical RGB values as the color in the background you can still see the outline of the image on the page top . The only way to fix this is to make the image transparent and allow the background to show through bottom . What is worth noting however is that 16-bit monitors use a completely different color spectrum than 24-bit monitors . it is not a subset of the 24-bit color space. For that reason when you specify a color numerically in a style sheet or use it in an image the 16-bit monitor always needs to shift it slightly to a color in its spectrum. Whether it gets shifted lighter or darker depends on whether the color is in an image or specified in a style sheet whether it is in the foreground or the background which browser and platform is used. In other words it s completely unpredictable. The same color may shift different directions in the foreground and background of the same document. What this means is that it is difficult to match a foreground color and background color seamlessly for users with 16-bit monitors Figure 3-11 . This may be problematic i f you want an image to blend seamlessly with a background image or color even if they have identical RGB values. While it will be seamless for the majority of users with 24-bit color monitors 16-bit users will see the rectangular edges of the image in front of the background and the seamless effect will be ruined. This issue is easily remedied by using a transparent graphic format that permits the background color to show through. Transparency is discussed in Chapter 18 Web Graphics Basics. Coping with monitor color variation Here are some tips and tricks for dealing with color variations from monitor to monitor. Let go of precise color control. Yes once again the best practice is to acknowledge that the colors you pick won t look the same to everyone and live with .
