Mamba Yellow
#fdd014
Lighter, warmer yellow-green for crisp highlights
About Mamba Yellow
Mamba Yellow looks like a hard yellow highlighter pulled slightly toward green, so it lands as warm and direct without tipping into the buttery softness of Inca Yellow or the cleaner lemon snap of Endless Summer. Compared with Dream of Spring, it keeps more body and saturation, not the airy, leaf-edge calm.
I reach for it when you need clear, alert callouts that still sit comfortably in the Green family, especially for dashboards and finance apps where emphasis has to read instantly over light panels. In practice that means tier chips, "in-stock" status dots, and onboarding step markers on white and light gray. It also works well in retail media promo overlays for SKU bursts where you want attention that feels energetic but not scorched.
One quirk: because it's warmer and denser than the more restrained springy yellows, it can overpower muted olives nearby. If that happens, anchor it with deep green text or a darker olive border so the UI doesn't flatten.
Code snippets
Copy this color into your project.
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
Variations
Shades
Darker variations, created by mixing toward black.
Tints
Lighter variations, created by mixing toward white.
Tones
Muted variations, created by reducing saturation.
Hues
Hue rotations around the color wheel.
Temperatures
Warm and cool shifts of this color.
Color harmonies
Suggested palettes
Palettes built around this color.
Community palettes
Published palettes that include this color.
