Color

#9dd331

#9dd331
hex#9dd331
rgbrgb(157, 211, 49)
hslhsl(80, 65%, 51%)
oklchoklch(0.801 0.19 127)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5398

Colors that go with #9dd331

Deep Sky Blue, Taupe and Plum 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.

Real palettes that use #9dd331

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6731d3

#d3b831 · #4cd331

#319dd3 · #d3319d

Split-complementary

Open in tool →

#314cd3 · #b831d3

#31d3b8 · #6731d3 · #d3314c

Contrast

#9dd331 as textRatioAAAA largeAAAFix
Aaon white
1.78:1failfailfail
  • AA: use #5d7e1b as the text (4.7:1)
  • AAA: use #476115 as the text (7.03:1)
  • AA: or shift the background to #4f4f4f (4.6:1)
  • AAA: or shift the background to #333333 (7.1:1)
Aaon black
11.8:1passpasspassPasses 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 #9dd331 as the background.

Brands using this color

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

mcpConnect your agent — build around #9dd331
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 #9dd331 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/9dd331-b1bea2-4e64df-232d1f-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