Color

#a9d142

#a9d142
hex#a9d142
rgbrgb(169, 209, 66)
hslhsl(77, 61%, 54%)
oklchoklch(0.805 0.172 123.8)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5443

Colors that go with #a9d142

Charcoal, Deep Sky Blue and Cornflower 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.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#6b42d1

#d1b242 · #61d142

#42a9d1 · #d142a9

Split-complementary

Open in tool →

#4261d1 · #b242d1

#42d1b2 · #6b42d1 · #d14261

Contrast

#a9d142 as textRatioAAAA largeAAAFix
Aaon white
1.77:1failfailfail
  • AA: use #647f1f as the text (4.57:1)
  • AAA: use #4a5e17 as the text (7.23:1)
  • AA: or shift the background to #4f4f4f (4.64:1)
  • AAA: or shift the background to #333333 (7.15:1)
Aaon black
11.89:1passpasspassPasses 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 #a9d142 as the background.

Brands using this color

mcpConnect your agent — build around #a9d142
live endpoint

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.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #a9d142 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a9d142-b3bea2-4e6bdf-232d1f-f1efe9?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md