Color

#91bf5a

#91bf5a
hex#91bf5a
rgbrgb(145, 191, 90)
hslhsl(87, 44%, 55%)
oklchoklch(0.75 0.14 129.5)
Closest name: Emerald Rain (#80c872)Relative luminance 0.4402

Colors that go with #91bf5a

Charcoal, Blue and Dark Olive Green 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.

Real palettes that use #91bf5a

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#875abf

#bfba5a · #5fbf5a

#5a91bf · #bf5a91

Split-complementary

Open in tool →

#5a5fbf · #ba5abf

#5abfba · #875abf · #bf5a5f

Contrast

#91bf5a as textRatioAAAA largeAAAFix
Aaon white
2.14:1failfailfail
  • AA: use #5d8132 as the text (4.51:1)
  • AAA: use #455f25 as the text (7.2:1)
  • AA: or shift the background to #424242 (4.69:1)
  • AAA: or shift the background to #262626 (7.07:1)
Aaon black
9.8:1passpasspassPasses 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 #91bf5a 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 #91bf5a
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 #91bf5a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/91bf5a-aebea2-4e53df-212d1f-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