Color
#51ea43
#51ea43rgb(81, 234, 67)hsl(115, 80%, 59%)oklch(0.825 0.241 141.9)Colors that go with #51ea43
Deep Sky Blue, Taupe and Violet 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 #51ea43 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Taupe #483c32
shippedTaupe is paired with #51ea43 in 4 real palettes, including 7-Eleven's brand system and WhatsApp's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Violet #ee82ee
complementaryViolet sits directly opposite #51ea43 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Dark Orange #ff8c00
shippedDark Orange is paired with #51ea43 in 3 real palettes, including Learning App and Citrus Grove, as the accent — a combination designers have actually shipped, not a computed rotation.
Hot Pink #ff69b4
split-complementHot Pink is a split-complement of #51ea43: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Lilac #c8a2c8
split-complementLilac is a split-complement of #51ea43: 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 #51ea43: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Royal Blue #4169e1
shippedRoyal Blue is paired with #51ea43 in two real palettes: MongoDB's brand system and Brilliant's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #51ea43
Tints & shades
Harmonies
Contrast
| #51ea43 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.59:1 | fail | fail | fail | |
Aaon black | 13.2:1 | 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 #51ea43 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 #51ea43 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/51ea43-a2bea3-8d4edf-1f2d24-eef1e9?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