#42FF5E Hex Color
Online color picker to view shades, tints, color codes, and complementary colors
Highly saturated and light, #42ff5e is a neon green with a crisp, glowing edge. Its lively intensity suggests safety and growth, making it useful for sustainability, gardening, pharmacy, and finance branding. Use the hex code #42ff5e as a small accent or action color beside charcoal, since it can overwhelm large areas. Black text reaches about 15.7:1 contrast on it, meeting WCAG AA for body text.
Questions about #42ff5e
What is #42ff5e in RGB, HSL and CMYK?
In RGB, #42ff5e is rgb(66, 255, 94), in HSL hsl(129, 100%, 63%) and in CMYK 74%, 0%, 63%, 0%.
What colors pair well with #42ff5e?
Does #42ff5e read as a warm or cool green?
#42ff5e reads as a cool neon green because its strong green hue leans toward a blue-clean, fluorescent appearance rather than yellow or earthy warmth, giving it an energetic, crisp, distinctly digital character.
Where should designers use #42ff5e?
#42ff5e works best as a small accent for buttons, status indicators, highlights, and calls to action, especially beside charcoal or other dark neutrals; its high saturation can feel overwhelming when spread across large surfaces.
Is #42ff5e readable on white or black?
#42ff5e has a 1.33:1 contrast ratio on white and 15.69:1 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.