Color

#91bb81

#91bb81
hex#91bb81
rgbrgb(145, 187, 129)
hslhsl(103, 30%, 62%)
oklchoklch(0.747 0.092 137.3)
Closest name: darkseagreen (#8fbc8f)Relative luminance 0.4315

Colors that go with #91bb81

Charcoal, Lilac and Champagne 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 →

#ab81bb

#afbb81 · #81bb8e

#8192bb · #bb8192

Split-complementary

Open in tool →

#8e81bb · #bb81af

#81afbb · #ab81bb · #bb8e81

Contrast

#91bb81 as textRatioAAAA largeAAAFix
Aaon white
2.18:1failfailfail
  • AA: use #578146 as the text (4.53:1)
  • AAA: use #406034 as the text (7.14:1)
  • AA: or shift the background to #424242 (4.61:1)
  • AAA: or shift the background to #242424 (7.12:1)
Aaon black
9.63:1passpasspassPasses 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 #91bb81 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 #91bb81
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 #91bb81 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/91bb81-a6bea2-704edf-1f2d21-eff1e9?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