There are many web design tutorials that cover Web color in detailed scientific terms. However , for our objectives, let’s briefly discuss Web color and how it can be used in the Web portfolio. You will need to create a color scheme for your Web portfolio pages. This means that you will designate colours for your page background, the type applied to the page and any other static elements that reside in the web page. There are two types of color that can be used in Web graphics. The colours can be associated with the Web graphic file formats we just mentioned: GIF and JPG. GIF
GIF documents use index color. Index colour consists of 216 common colors available on all computer monitors and within all Web browsers. These common colors reside in a Web palette. The Web colour scheme of colors is available in Macromedia Fireworks and Adobe Photoshop so they can be used within design of Web screens without variance of color when the pages are on the Internet. Also, the Web palette could be the standard color palette in Macromedia Dreamweaver and Macromedia Flash. This allows us to achieve consistent color across Internet applications and Web browsers.
We use Web colors for:
o Web text/HTML text
o Web page experience
o Web page colors used for table or layer backgrounds
o Web links
o GIF files JPG
JPG files use red, green, and blue (RGB) for visual color. RGB color is also called full color. Full color items include bitmap graphics or photographs. We want to use photographs as much as we can within an Internet portfolio to add to the visual rhetoric and the narrative that we are trying to present. Extensive use of photographs, especially their own manipulation in programs such as Adobe Photoshop, require a brief description of the RGB color model. RGB colour is known as additive color because of all of colors, red green, and glowing blue were added together at their own full intensity that would create genuine white. The mixtures of the comparative strengths of these colors, “create the particular millions of colors computer monitors may show” (Kimball, 2003, p. 95). The strength of these colors is set in from zero to 255 along with zero being the least intensity and 255 being the highest intensity. Whenever red, green and blue are combined at zero intensity the result is black. At full power, high intensity, where the values are set at 255, 255, 255, the result is pure white. To remember this, here is a simple metaphor. Think about the red, green, and blue as light switches. Each light switch using a slider has a range of zero to 255. When all of the white switches are set in zero the room is dark. Exactly what all the light switches are set to 255, the room is lit in full intensity. Once you begin to use image-editing applications such as Adobe Photoshop and Macromedia fireworks, you begin to explore computer color within your graphics photos. When discussing color usage, full color or RGB color is present within photographic JPG files and other produced artwork. Full color images should not be preserved as GIF files because of the limited number of colors. By having limited colours, the full color image will symbolize the true colors using the existing Web palette of 216 colors.
This creates a poor, dithered, and ugly image. That is why it is very important to use the right file format for each specific graphic. Whenever converting print images to the Web, it’s important that you do not use the CMYK colour model for anything including visuals. The CMYK model is not a monitor friendly color space. The CMYK graphics cannot be seen in CMYK on the Internet. They can only be symbolized by the RGB color model or maybe the Web safe (indexed) color model. Here are the rules for Web color:
o Full color images (RGB palette) and photos are saved since JPG.
o Flat graphics (Web 216 palette) with limited colour are saved as GIF files.
o For Page backgrounds utilize the Web safe palette (Web 216 palette) in all computer graphics, media, and Web development applications. Today, let’s discuss Web page and visual size. Size
Web pages are measured in pixels. Pixels are the device of measurement for the screen. A Web page can literally be any size.
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Standard Web pages usually match a few sizes:
oW × L
o 600 × 800
u 640 × 480 (Dreamweaver default)
o 1024 × 768
u 550 × 400 (Flash default)
The default Web page sizes provided in Web friendly applications plus listed earlier are a great place to start. You will probably use a smaller, custom size for pop-up windows. The Web page size you choose is up to you. Remember to use actual space for the Web page efficiently so that the content is in the proper proximity to the user’s navigation patterns. Webpage size affects the way users maneuver around the Web pages and the Web portfolio site. One rule: Pick a dimension for all main screens and stick to it.
Consistency in page size l should be used on each level of the Web portfolio design flowchart. You will need to realize size in the image editing program when you develop screens and Internet graphics. We must keep our graphics within the page size guidelines otherwise they will over extend the Web internet browser and the user will need to scroll to see them. That is not a good thing and will certainly turn off the user. When you are looking at Web screens and graphics in an picture editing application such as Macromedia Fireworks or Adobe Photoshop, you can see the actual size the image will occupy on a monitor when the view is set to 100 percent.