Color

#81e727

#81e727
hex#81e727
rgbrgb(129, 231, 39)
hslhsl(92, 80%, 53%)
oklchoklch(0.833 0.231 134.8)
Closest name: Becquerel (#4bec13)Relative luminance 0.6197

Colors that go with #81e727

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 →

#8e27e7

#e1e727 · #27e72e

#2781e7 · #e72781

Split-complementary

Open in tool →

#2e27e7 · #e727e1

#27e1e7 · #8e27e7 · #e72e27

Contrast

#81e727 as textRatioAAAA largeAAAFix
Aaon white
1.57:1failfailfail
  • AA: use #46850f as the text (4.54:1)
  • AAA: use #33600b as the text (7.45:1)
  • AA: or shift the background to #575757 (4.61:1)
  • AAA: or shift the background to #3b3b3b (7.14:1)
Aaon black
13.39:1passpasspassPasses 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 #81e727 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 #81e727
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 #81e727 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81e727-acbea2-564edf-202d1f-f1f1e9?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