The color and contrast of website design

Web design can use lab precisely, because it is from the image of the details of the detail color separations, resolved in RGB and CMYK are difficult to solve many problems. If you are accustomed to operating in RGB color space, you are free to switch between lab and RGB, without loss of quality in the conversion. If you have already operated in CMYK color space, there is only a small loss of quality to lab, but the loss is offset by the benefits of this conversion.

Lab has three channels, and in this page of images you can see that A and B channels are almost indistinguishable, they just define the color portion of the image without defining the shape details of the image, which is different from RGB and CMYK.

Lab gamut space is much wider than any color space we are familiar with. As a result, only half of the tones are used in both channels, no white or black, and some are just grey.

Understanding the phenomena of these two passages is not laborious, as one scientist calls them: the opposing channels of interaction. In popular terms, it is in the A channel, the bright part of a region red than green, the dark part of a region of green more than red. The lighter (or darker) indicates the greater the color saturation. A pure ash, of course, represents a gray color. B Channel works the same, light means that a region of yellow than blue, black means that a region more blue than yellow. This can be explained in our example image, why a channel and B channel would be like that, in the r-g opposite color of a channel, emphasizing the contrast of red highlighting and trees, while the tree emphasizes green, in y-b opposite color B channel, y-b This contrast is weaker, because the tree and the yellow in the font is slightly more than blue.

The L channel is simpler and can be seen as a black-and-white version of a crisp image.

Lab is a common way to make the body color more colorful, regardless of whether the web design uses filters, curves, or other tools that fail to represent the thinnest color in the image. It's often the last thing you'll use. Of course, if you are in the no color of the L channel for revision or color correction, it will not have any effect.