#21F5E7 Hex Color
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Luminous and highly saturated, this neon teal sits close to white in lightness. #21f5e7 reads fresh and cool, so it works best as a small accent or highlight rather than a full background, where it can overwhelm. Pair it with deep navy or charcoal to keep its glow in check. The hex code also holds strong contrast with black text, about 15.3:1, so dark type stays readable on top of it.
Questions about #21f5e7
What is #21f5e7 in RGB, HSL and CMYK?
In RGB, #21f5e7 is rgb(33, 245, 231), in HSL hsl(176, 91%, 55%) and in CMYK 87%, 0%, 6%, 4%.
What colors pair well with #21f5e7?
Deep navy and charcoal ground the brightness of #21f5e7 and make it feel polished instead of loud. For a bolder mix, a small coral accent against the teal adds warm contrast.
Is #21f5e7 readable on white or black?
#21f5e7 has a 1.37:1 contrast ratio on white and 15.27:1 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.