BrickLink uses its own color naming and numbering system, distinct from the official LEGO color codes. Each color is assigned a unique BrickLink ID (e.g., Black = 11, White = 1). This system is used across the BrickLink marketplace to categorize and search for LEGO parts by color. It's the de facto standard for the secondary LEGO market and is widely used by MOC (My Own Creation) designers when sourcing parts.

BrickLink currently lists over 200 distinct colors across various categories including Solid, Transparent, Metallic, Pearl, Chrome, Glitter, Speckle, and Milky finishes. However, not all colors are available for every part. Some colors are extremely rare or have been retired (like Chrome Gold and Chrome Silver), while new colors are occasionally introduced by LEGO and subsequently added to BrickLink's catalog.

LEGO uses internal color numbers (e.g., LEGO Color 23 = Bright Blue), while BrickLink assigns its own IDs (e.g., Blue = 7). The BrickLink system was developed independently by the community and marketplace before LEGO's official color data was widely available. This means there's no direct correlation between the two numbering systems. BrickLink color names also differ from LEGO's official names—for example, LEGO's "Medium Stone Grey" is called "Light Bluish Gray" on BrickLink (ID 86).

Some of the rarest and most sought-after LEGO colors include Chrome Gold, Chrome Silver, and Chrome Black (all now discontinued). Vintage colors like Sand Red (BrickLink ID 58), Sand Purple, and certain Metallic finishes from the early 2000s are also highly valued. Additionally, prototype colors that were never officially released occasionally surface on the secondary market and command premium prices. The Milky White and early Speckle colors are also considered rare finds.

These hex color codes are invaluable for digital MOC planning. You can use them in BrickLink Studio (the official digital LEGO design tool), LDraw, or any 3D rendering software to accurately represent LEGO colors. They're also useful for creating color palettes, planning part orders, and ensuring color consistency across your builds. Simply click any hex code on this page to copy it to your clipboard, then paste it into your design tool of choice.

In 2004, LEGO transitioned from Light Gray and Dark Gray to Light Bluish Gray (BL ID 86) and Dark Bluish Gray (BL ID 85), adding a subtle blue tint to improve color consistency and aesthetic appeal. Similarly, Brown was replaced with Reddish Brown (BL ID 88). This change was controversial among AFOLs (Adult Fans of LEGO) at the time, but the new colors have since become standard. Parts in the original grays are now considered vintage and can be harder to find.

Yes, prolonged exposure to UV light (sunlight) can cause LEGO bricks to fade or yellow over time. White and light gray bricks are particularly susceptible to yellowing. This is due to the degradation of the ABS plastic and flame retardants used in older bricks. Modern LEGO bricks have improved UV resistance, but it's still recommended to display your builds away from direct sunlight. Some collectors use hydrogen peroxide treatments to restore yellowed white bricks, though this is a debated practice in the community.