#66B945 Hex Color
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#66b945 is a bright, strongly saturated green with a slightly warm yellow undertone. Its lively intensity suggests growth and energy, fitting calls to action, sports graphics, gaming interfaces, and eco-focused branding. Use it as a focused accent or supporting tone rather than a full background. The hex code #66b945 supports clear black text at about 8.6:1 contrast.
Questions about #66b945
What is #66b945 in RGB, HSL and CMYK?
In RGB, #66b945 is rgb(102, 185, 69), in HSL hsl(103, 46%, 50%) and in CMYK 45%, 0%, 63%, 27%. Browse more shades of green with names and hex codes.
What colors pair well with #66b945?
#66b945 pairs well with charcoal, deep navy, and muted terracotta because those darker or earthier tones temper its high saturation without dulling its energy. Use one as a grounding color and reserve #66b945 for accents, buttons, or selected interface states.
Is #66b945 readable on white or black?
#66b945 has a 2.44:1 contrast ratio on white and 8.59:1 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.