#21B561 Hex Color
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#21b561 is a bold, saturated green with high intensity. Because it commands attention, this shade works best as an accent color for calls to action or UI highlights rather than a full background. It pairs exceptionally well with dark charcoal grays, allowing the green to pop without overpowering the layout. The hex code for this lush, beaming green is #21b561, which provides high contrast for readable black text.
Questions about #21b561
What is #21b561 in RGB, HSL and CMYK?
In RGB, #21b561 is rgb(33, 181, 97), in HSL hsl(146, 69%, 42%) and in CMYK 82%, 0%, 46%, 29%.
What colors pair best with #21b561 in a design?
#21b561 functions best when anchored by neutral tones like charcoal or deep slate, which ground its high-energy vibrancy. For a more dynamic approach, pair this green with soft apricot or pale yellow accents to create a balanced, nature-inspired palette that feels both modern and professional.
Is #21b561 readable on white or black?
#21b561 has a 2.67:1 contrast ratio on white and 7.84:1 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.