Cyber Yellow

#ffd400

High-saturation lemon chartreuse for clear, energetic accents

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About Cyber Yellow

Cyber Yellow reads like a bright status chip under shop lighting, not like honeyed sunlight. Compared to , it's less metallic and less sun-baked, more clean and electric. Compared to , it skips that deeper golden warmth and stays more brisk, so it feels closer to a hard UI signal than a cozy glow. And next to , it keeps sharper saturation instead of drifting toward the slightly bleached, in-between warmth.

I use it for premium callouts when I need attention fast, especially in dashboards and finance apps for tier markers, "verified" badges, and step-complete moments where you want confidence without 's golden softness. It's also great in retail media overlays for promo labels that shouldn't look like discount stickers on near-black or dark green backgrounds.

One quirk: because it's so punchy, it can look a bit neon on large fills. For balance, I keep it as a foreground accent and let rich greens and charcoal do the heavy lifting.

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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

Aa
1.43:1Fail

On Gray 100 #f5f5f5

Aa
1.31:1Fail

On Gray 900 #18181b

Aa
12.38:1AAA

On Black #000000

Aa
14.67:1AAA

Variations

Shades

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Tints

Lighter variations, created by mixing toward white.

Tones

Muted variations, created by reducing saturation.

Hues

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Temperatures

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Color harmonies

Complementary
Analogous
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Split Complementary
Tetradic

Suggested palettes

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Community palettes

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Similar colors

#ffd700
#ffd800

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