Color
#a1fc03
#a1fc03rgb(161, 252, 3)hsl(82, 98%, 50%)oklch(0.899 0.245 131.1)Colors that go with #a1fc03
Violet, Blue 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 #a1fc03 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped3 real palettes, including Robinhood's brand system and MongoDB's brand system put Blue beside #a1fc03, as the supporting colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #a1fc03: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Red #ff0000
shippedRed is paired with #a1fc03 in 3 real palettes, including Wise's brand system and Gatorade's brand system, as the lead colour.
Hot Pink #ff69b4
split-complementHot Pink is a split-complement of #a1fc03: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson #dc143c
shippedCrimson is paired with #a1fc03 in two real palettes: Wise's brand system and Ferrari's brand system, as the accent.
Lime Green #32cd32
shippedTwo real palettes: Duolingo's brand system and Monster Energy's brand system put Lime Green beside #a1fc03, as the lead colour.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #a1fc03 in two real palettes: Klaviyo's brand system and Heineken's brand system, as the accent.
Real palettes that use #a1fc03
Tints & shades
Harmonies
Contrast
| #a1fc03 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.28:1 | fail | fail | fail | |
Aaon black | 16.44:1 | 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 #a1fc03 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 #a1fc03 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/a1fc03-b0bea2-4e5fdf-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