Color
#a9e042
#a9e042rgb(169, 224, 66)hsl(81, 72%, 57%)oklch(0.84 0.19 127)Colors that go with #a9e042
Blue, Crimson and Deep Sky Blue 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.
Blue #0000ff
shipped4 real palettes, including Robinhood's brand system and MongoDB's brand system put Blue beside #a9e042, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #a9e042 in 5 real palettes, including Wise's brand system and Lay's's brand system, as the accent.
Deep Sky Blue #00bfff
triadicshippedDeep Sky Blue completes a triad with #a9e042 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Gold #ffd700
shippedGold shows up next to #a9e042 in 4 real palettes, including Prime Video's brand system and Ikea's brand system, as the lead colour.
Red #ff0000
shippedRed is paired with #a9e042 in 5 real palettes, including Wise's brand system and Gatorade's brand system, as the lead colour.
Plum #dda0dd
complementaryPlum sits directly opposite #a9e042 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Violet #ee82ee
split-complementshippedViolet is a split-complement of #a9e042: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #a9e042: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Real palettes that use #a9e042
Tints & shades
Harmonies
Contrast
| #a9e042 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.56:1 | fail | fail | fail | |
Aaon black | 13.43:1 | 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 #a9e042 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 #a9e042 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/a9e042-b1bea2-4e62df-222d1f-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