B00

b00 is a shorthand hexadecimal color notation used in CSS and HTML to specify colors with three hexadecimal digits. In this form, each digit is duplicated to yield a six-digit hex color. Therefore, b00 expands to #bb0000, a vivid red color. The digits 0–9 and a–f are valid; this shorthand is part of the standard method for writing web colors and is interpreted by browsers as equivalent to the full six-digit form.

In terms of color values, #bb0000 corresponds to RGB values of (187, 0, 0) on the 0–255 scale. It represents a strong, pure red without any green or blue components, making it a common choice for alerting or highlighting elements in web design.

Usage and compatibility: The three-digit hex notation is supported by modern web browsers as part of standard CSS color notation. It is often used to keep CSS concise, especially in inline styles or style sheets with many color declarations. While convenient, some developers prefer the full six-digit form (#bb0000) for readability and future maintainability.

Other uses: The string “b00” may appear in contexts outside color notation as an identifier, code, or label in various systems. In those cases, its meaning depends on the specific domain and is not related to color representation.

See also: hex color notation, CSS color, color values in CSS.