Color

#c9f980

#c9f980
hex#c9f980
rgbrgb(201, 249, 128)
hslhsl(84, 91%, 74%)
oklchoklch(0.923 0.158 127.1)
Closest name: Celery Mousse (#c1fd95)Relative luminance 0.8173

Colors that go with #c9f980

Plum, 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b180f9

#f9ed80 · #8cf980

#80c9f9 · #f980c9

Split-complementary

Open in tool →

#808cf9 · #ed80f9

#80f9ed · #b180f9 · #f9808c

Contrast

#c9f980 as textRatioAAAA largeAAAFix
Aaon white
1.21:1failfailfail
  • AA: use #518406 as the text (4.51:1)
  • AAA: use #3c6105 as the text (7.23:1)
  • AA: or shift the background to #696969 (4.53:1)
  • AAA: or shift the background to #4a4a4a (7.32:1)
Aaon black
17.35:1passpasspassPasses 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 #c9f980 as the background.

Brands using this color

Fonts for this mood

#c9f980 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c9f980
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 #c9f980 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c9f980-afbea2-4e5adf-222d1f-f1f0e9?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