#21DB5F Hex Color
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This intense, neon green demands attention. The hex code for this color is #21db5f. Due to its high saturation, it works best as an accent color for UI highlights or sustainability branding rather than a large background. Black text provides excellent readability against this shade, allowing for high-contrast accessibility. Pair it with deep charcoals to ground the energy for a clean, modern aesthetic.
Questions about #21db5f
What is #21db5f in RGB, HSL and CMYK?
In RGB, #21db5f is rgb(33, 219, 95), in HSL hsl(140, 74%, 49%) and in CMYK 85%, 0%, 57%, 14%.
What works best with #21db5f in a UI design?
Because #21db5f carries such high visual energy, it is most effective when used sparingly as a call-to-action button or a status indicator against a neutral background. Use deep charcoal text to ground the design and maintain readability.
Is #21db5f readable on white or black?
#21db5f has a 1.84:1 contrast ratio on white and 11.36:1 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.