Color

#55d251

#55d251
hex#55d251
rgbrgb(85, 210, 81)
hslhsl(118, 59%, 57%)
oklchoklch(0.766 0.203 142.8)
Closest name: Battletoad (#11cc55)Relative luminance 0.4862

Colors that go with #55d251

Blue, Royal Blue and Taupe 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 →

#ce51d2

#96d251 · #51d28d

#5155d2 · #d25155

Split-complementary

Open in tool →

#8d51d2 · #d25196

#5196d2 · #ce51d2 · #d28d51

Contrast

#55d251 as textRatioAAAA largeAAAFix
Aaon white
1.96:1failfailfail
  • AA: use #268623 as the text (4.65:1)
  • AAA: use #1d651a as the text (7.17:1)
  • AA: or shift the background to #4a4a4a (4.53:1)
  • AAA: or shift the background to #2b2b2b (7.23:1)
Aaon black
10.72:1passpasspassPasses 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 #55d251 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 #55d251
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 #55d251 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/55d251-a2bea4-944edf-1f2d25-edf1e9?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