HTMLvärikoodit

HTMLvärikoodit, pronounced "HTML Vahri-koh-deet," refers to the system used in HTML and CSS to define and specify colors within web pages. These codes allow web developers to control the exact hue, saturation, and lightness of elements displayed in a browser. There are several common formats for representing HTML color codes.

One of the most prevalent methods is the hexadecimal (hex) color code. This format begins with a hash symbol (#) followed by six hexadecimal characters. The first two characters represent the intensity of red, the next two represent green, and the final two represent blue. Each pair ranges from 00 (no intensity) to FF (full intensity). For example, #FF0000 represents pure red, #00FF00 represents pure green, and #0000FF represents pure blue. Combinations like #FFFFFF represent white, and #000000 represent black.

Another common approach is using RGB (Red, Green, Blue) values. This format is written as rgb(red, green, blue), where each color component is an integer between 0 and 255. For instance, rgb(255, 0, 0) is equivalent to #FF0000, representing red. Similarly, rgb(0, 255, 0) is green, and rgb(0, 0, 255) is blue.

A variation of the RGB format is RGBA, which adds an alpha channel for transparency. The format is rgba(red, green, blue, alpha), where alpha is a value between 0 (fully transparent) and 1 (fully opaque). This allows for semi-transparent colors to be applied to elements.

Finally, named color values offer a more readable, albeit less precise, way to specify colors. Standardized names like "red," "blue," "green," "white," and "black" are recognized by browsers, along with many other predefined color names. While convenient for simple applications, hex and RGB codes provide greater control and consistency.