Color
#c9ef71
#c9ef71rgb(201, 239, 113)hsl(78, 80%, 69%)oklch(0.899 0.159 123.5)Colors that go with #c9ef71
Charcoal, Plum and 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.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #c9ef71: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Plum #dda0dd
complementaryshippedPlum sits directly opposite #c9ef71 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped4 real palettes, including Robinhood's brand system and Bumble's brand system put Blue beside #c9ef71, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #c9ef71 in 8 real palettes, including Wise's brand system and Lay's's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #c9ef71: 5 real palettes, including FIFA's brand system and Ikea's brand system, as the supporting colour.
Red #ff0000
shippedRed is paired with #c9ef71 in 6 real palettes, including Wise's brand system and Paddle's brand system, as the lead colour.
Taupe #483c32
shippedTaupe is paired with #c9ef71 in 13 real palettes, including Crayon Box and Macaron, as the text colour against it.
Tomato #ff6347
shipped5 real palettes, including Crayon Box and Night Market put Tomato beside #c9ef71, as the lead colour.
Real palettes that use #c9ef71
Tints & shades
Harmonies
Contrast
| #c9ef71 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 1.31:1 | fail | fail | fail | |
Aaon black | 16.07:1 | 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 #c9ef71 as the background.
Brands using this color
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 #c9ef71 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/c9ef71-b2bea2-4e69df-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