Color

#51e662

#51e662
hex#51e662
rgbrgb(81, 230, 98)
hslhsl(127, 75%, 61%)
oklchoklch(0.818 0.215 145.1)
Closest name: Green Priestess (#11dd55)Relative luminance 0.5922

Colors that go with #51e662

Deep Sky Blue, Taupe and Violet 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 →

#e651d5

#8ae651 · #51e6ad

#6251e6 · #e66251

Split-complementary

Open in tool →

#ad51e6 · #e6518a

#518ae6 · #e651d5 · #e6ad51

Contrast

#51e662 as textRatioAAAA largeAAAFix
Aaon white
1.63:1failfailfail
  • AA: use #138621 as the text (4.71:1)
  • AAA: use #0f6719 as the text (7.06:1)
  • AA: or shift the background to #545454 (4.63:1)
  • AAA: or shift the background to #383838 (7.17:1)
Aaon black
12.84:1passpasspassPasses 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 #51e662 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 #51e662
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 #51e662 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51e662-a2bea8-aa4edf-1f2d27-ecf1e9?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