Color
#a3f359
#a3f359rgb(163, 243, 89)hsl(91, 87%, 65%)oklch(0.882 0.201 132.6)Colors that go with #a3f359
Violet, Gold and Charcoal 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 #a3f359 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Gold #ffd700
shippedGold shows up next to #a3f359 in 4 real palettes, including Prime Video's brand system and Ikea's brand system, as the lead colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #a3f359: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Deep Sky Blue #00bfff
triadicshippedDeep Sky Blue completes a triad with #a3f359 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Hot Pink #ff69b4
split-complementHot Pink is a split-complement of #a3f359: 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 #a3f359: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Blue #0000ff
shippedTwo real palettes: Robinhood's brand system and MongoDB's brand system put Blue beside #a3f359, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #a3f359 in two real palettes: Wise's brand system and Lay's's brand system, as the accent.
Real palettes that use #a3f359
Tints & shades
Harmonies
Contrast
| #a3f359 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.35:1 | fail | fail | fail | |
Aaon black | 15.52:1 | 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 #a3f359 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 #a3f359 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/a3f359-acbea2-534edf-202d1f-f1f1e9?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