Neobank
Open in tool →Purple-and-lime is the challenger-bank uniform — high energy, and clearly not a legacy bank.
Color
#a3e01f
#a3e01f
hex
#a3e01frgb
rgb(163, 224, 31)hsl
hsl(79, 76%, 50%)oklch
oklch(0.834 0.209 127.3)Closest name: Conifer (#b1dd52)Relative luminance 0.612
Colors that go with #a3e01f
Violet, Deep Sky Blue and Taupe 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.
Violet #ee82ee
complementaryshippedViolet sits directly opposite #a3e01f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Deep Sky Blue #00bfff
triadicshippedDeep Sky Blue completes a triad with #a3e01f — 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 #a3e01f in 6 real palettes, including Citrus Grove and Acer's brand system, as the text colour against it.
Blue #0000ff
shipped3 real palettes, including MongoDB's brand system and Robinhood's brand system put Blue beside #a3e01f, as the accent.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #a3e01f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Mustard Yellow #ffdb58
shipped3 real palettes, including Citrus Grove and Meadow put Mustard Yellow beside #a3e01f, as the accent.
Light Coral #f08080
triadicshippedLight Coral completes a triad with #a3e01f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Emerald Green #50c878
analogousshippedEmerald Green is #a3e01f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Real palettes that use #a3e01f
Tints & shades
Harmonies
Contrast
| #a3e01f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.59:1 | fail | fail | fail | |
Aaon black | 13.24:1 | 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 #a3e01f as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
mcpConnect your agent — build around #a3e01f
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #a3e01f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/a3e01f-b2bea2-4e66df-232d1f-f1f0e9?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