Lethal Lime
#88ff11
Cleaner lime than Radioactive, cooler than Loud Lime
About Lethal Lime
I keep thinking of Lethal Lime as the checkout beacon that's set slightly closer to the eye. Compared to Loud Lime and Acid Green, it's not as aggressively fluorescent or yellow-humming. It lands lighter and cleaner, with a greener, colder undertone that reads more "signal" than "pulse."
In UI comps, I use it for dashboards and finance apps when I need a status highlight that stays crisp over dark surfaces without drifting into chartreuse behavior. It's great in live operations panels, logistics control rooms, and alert strips for newly detected events where you want fast scanning but not that extra edge Loud Lime can feel. Compared to Loud Lime, it holds its focus with less bite; compared to Acid Green, it feels less electric and more precise.
One quirk: it can look a touch sterile next to warmer greens, so I'll usually anchor it with deep charcoal and a restrained mint or leaf for secondary states.
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Contrast checker
WCAG 2.1 contrast ratios. AA requires 4.5:1 for normal text, 3:1 for large. AAA requires 7:1 / 4.5:1.
On White #ffffff
On Gray 100 #f5f5f5
On Gray 900 #18181b
On Black #000000
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