3333FFxxxxxx

3333FFxxxxxx is a stylized identifier used in digital design and color management to denote a family of color tokens that begins with the fixed hex color 3333FF and includes a variable suffix represented by six placeholder characters xxxxxx. In this convention, the six-character base code 3333FF corresponds to a deep blue hue in the sRGB color space, while the trailing xxxxxx does not specify a single color by itself but signals that the token can be expanded by a system to include variant information.

The purpose of this notation is to provide a compact, scalable way to name color tokens that share a common base hue but differ in attributes such as saturation, lightness, opacity, or project-specific variant codes. In practice, a design token registry or asset pipeline may substitute the xxxxxx portion with a concrete variant code to produce a full token name that maps to an exact color value. For example, a processor might generate tokens like 3333FF000001 or 3333FF7A9B2C, each resolving to a specific hex value used by code, style sheets, or design tools.

Benefits of the approach include readability, consistency, and easier automation in large design systems where many colors are derived from a single base hue. It also helps separate the base color from the variant metadata, enabling clearer documentation and versioning. Limitations include the need for clear substitution rules and disciplined documentation to prevent ambiguity across teams.

This notation is not a formal standard but a naming convention seen in some internal tooling and design-system discussions. Related topics include hex color, color tokens, and design systems.