#15C900 Hex Color
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#15c900 is an aggressive, high-saturation green that demands attention. Because it sits at maximum chroma, it creates visual fatigue quickly, making it best suited for small UI accents like status indicators or call-to-action buttons rather than large backgrounds. Pair this hex code with dark charcoal for high-contrast accessibility, as it tends to overwhelm lighter neutrals.
Questions about #15c900
What is #15c900 in RGB, HSL and CMYK?
In RGB, #15c900 is rgb(21, 201, 0), in HSL hsl(114, 100%, 39%) and in CMYK 90%, 0%, 100%, 21%.
How can #15c900 be used effectively in UI design?
#15c900 is best utilized as a tactical highlight for call-to-action buttons or status indicators because its high saturation quickly causes visual fatigue. Use it sparingly against charcoal or deep neutral backgrounds to maintain high-contrast accessibility.
What makes #15c900 difficult to pair with other colors?
This color sits at maximum chroma, which tends to clash with softer pastels or desaturated tones by overpowering them entirely. It functions most harmoniously when paired with dark, grounded neutrals that balance its inherent intensity and aggressive brightness.
Is #15c900 readable on white or black?
#15c900 has a 2.23:1 contrast ratio on white and 9.38:1 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.