Color

#9fd228

#9fd228
hex#9fd228
rgbrgb(159, 210, 40)
hslhsl(78, 68%, 49%)
oklchoklch(0.799 0.192 125.9)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5362

Colors that go with #9fd228

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5b28d2

#d2b028 · #4ad228

#289fd2 · #d2289f

Split-complementary

Open in tool →

#284ad2 · #b028d2

#28d2b0 · #5b28d2 · #d2284a

Contrast

#9fd228 as textRatioAAAA largeAAAFix
Aaon white
1.79:1failfailfail
  • AA: use #618118 as the text (4.5:1)
  • AAA: use #475e12 as the text (7.3:1)
  • AA: or shift the background to #4f4f4f (4.57:1)
  • AAA: or shift the background to #333333 (7.05:1)
Aaon black
11.72:1passpasspassPasses 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 #9fd228 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 #9fd228
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 #9fd228 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/9fd228-b2bea2-4e69df-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