#51C512 Hex Color

A high-energy neon lime green

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#51c512 is an intensely saturated lime green that demands attention. Because it is so loud and high-energy, use it sparingly as a call-to-action button or a small accent rather than a background. It pairs exceptionally well with charcoal grays or deep navies to ground its neon brilliance. This hex code provides strong contrast against black text for excellent readability in UI designs.

Questions about #51c512

What is #51c512 in RGB, HSL and CMYK?

In RGB, #51c512 is rgb(81, 197, 18), in HSL hsl(99, 83%, 42%) and in CMYK 59%, 0%, 91%, 23%.

How can I effectively use #51c512 in a professional design?

Because #51c512 is an intensely saturated neon, use it primarily as a functional accent for call-to-action buttons or small interface highlights. To keep the design grounded, pair it with neutral charcoal or navy tones that balance its high-energy, vibrant character.

Is #51c512 readable on white or black?

#51c512 has a 2.24:1 contrast ratio on white and 9.34:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it is too faint for text and on black it works for body text. Try other pairs in the contrast checker.

#51C512 Hex Color

A high-energy neon lime green

Questions about #51c512

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