#1EFF00 Hex Color
Electric green with fresh energy
With its near-maximum saturation and high lightness, #1eff00 is an electric neon green that feels fresh, glowing, and energetic. This hex code suits eco, pharmacy, gardening, and sustainability branding, while also suggesting safety and balance. Use it as a small accent beside charcoal or deep navy. Black text remains highly readable at about 15.4:1 contrast.
Questions about #1eff00
What is #1eff00 in RGB, HSL and CMYK?
In RGB, #1eff00 is rgb(30, 255, 0), in HSL hsl(113, 100%, 50%) and in CMYK 88%, 0%, 100%, 0%.
What colors pair well with #1eff00?
#1eff00 pairs well with black, charcoal, and deep navy, which temper its neon intensity and make the green feel more intentional; use it as an accent with neutral surfaces rather than as a large background.
Is #1eff00 warm or cool?
#1eff00 reads as a vivid, slightly yellow-leaning green rather than a blue-green, so it feels energetic, fresh, and active; its intense saturation makes the hue appear brighter and more electric than a natural leaf green.
Is #1eff00 readable on white or black?
#1eff00 has a 1.36:1 contrast ratio on white and 15.35:1 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.