Signal Green
#33ff00
Pure, balanced green for crisp, cool accents
About Signal Green
I think Signal Green looks like a neon status lamp that got dialed to "just right." It's brighter than the screen-flat feeling of the more generic greens, but it stays cleaner and less pin-sharp than Neon Green. The undertone is true green with a slightly cooler lean, so it reads as output, not a yellow heat or a CRT bite.
I reach for it when the UI needs Signal Green for crisp "active" markers without sliding into Acid's warmth or that super-direct, keying-like rawness you get from Green Screen. In practice: industrial uptime panels, route tracking overlays for logistics, and live ops dashboards where state dots, stroke highlights, and legend emphasis have to stay distinct over busy grids. Compared to McNuke, this one holds a touch more lift while staying smoother, so thin lines don't smear into a single glow.
Use it as the lead accent against charcoal or deep greens, and it won't start feeling like the whole screen is lit by the same indicator.
Code snippets
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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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