Color

#81e489

#81e489
hex#81e489
rgbrgb(129, 228, 137)
hslhsl(125, 65%, 70%)
oklchoklch(0.836 0.156 145.8)
Closest name: Grotesque Green (#64e986)Relative luminance 0.6196

Colors that go with #81e489

Charcoal, Deep Sky Blue and Royal Blue 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 →

#e481dc

#aae481 · #81e4bb

#8981e4 · #e48981

Split-complementary

Open in tool →

#bb81e4 · #e481aa

#81aae4 · #e481dc · #e4bb81

Contrast

#81e489 as textRatioAAAA largeAAAFix
Aaon white
1.57:1failfailfail
  • AA: use #1d8725 as the text (4.62:1)
  • AAA: use #15651c as the text (7.22:1)
  • 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 #81e489 as the background.

Brands using this color

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

Fonts for this mood

#81e489 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #81e489
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 #81e489 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81e489-a2bea7-a54edf-1f2d26-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