Color

#c9ff6b

#c9ff6b
hex#c9ff6b
rgbrgb(201, 255, 107)
hslhsl(82, 100%, 71%)
oklchoklch(0.934 0.185 126.6)
Closest name: Celery Mousse (#c1fd95)Relative luminance 0.85

Colors that go with #c9ff6b

Blue, Crimson and Red 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 →

#a16bff

#ffeb6b · #7fff6b

#6bc9ff · #ff6bc9

Split-complementary

Open in tool →

#6b7fff · #eb6bff

#6bffeb · #a16bff · #ff6b7f

Contrast

#c9ff6b as textRatioAAAA largeAAAFix
Aaon white
1.17:1failfailfail
  • AA: use #518000 as the text (4.73:1)
  • AAA: use #3d6100 as the text (7.22:1)
  • AA: or shift the background to #6b6b6b (4.57:1)
  • AAA: or shift the background to #4f4f4f (7.02:1)
Aaon black
18:1passpasspassPasses 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 #c9ff6b as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#c9ff6b reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c9ff6b
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 #c9ff6b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c9ff6b-b0bea2-4e5fdf-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