Color
#4ff00f
#4ff00frgb(79, 240, 15)hsl(103, 88%, 50%)oklch(0.838 0.267 140)Colors that go with #4ff00f
Deep Sky Blue, Violet and Hot Pink lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Deep Sky Blue #00bfff
triadicshippedDeep Sky Blue completes a triad with #4ff00f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Violet #ee82ee
complementaryViolet sits directly opposite #4ff00f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Hot Pink #ff69b4
split-complementHot Pink is a split-complement of #4ff00f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Charcoal #36454f
neutralCharcoal is the body-text near-black for #4ff00f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Lilac #c8a2c8
split-complementLilac is a split-complement of #4ff00f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Light Coral #f08080
triadicLight Coral completes a triad with #4ff00f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Medium Aquamarine #66cdaa
analogousMedium Aquamarine is #4ff00f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shippedBlue is paired with #4ff00f in MongoDB's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #4ff00f
Tints & shades
Harmonies
Contrast
| #4ff00f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.52:1 | fail | fail | fail | |
Aaon black | 13.8:1 | pass | pass | pass | Passes AAA — no fix needed. |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4ff00f as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #4ff00f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/4ff00f-a6bea2-704edf-1f2d21-eff1e9?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md