Color

#b5fd81

#b5fd81
hex#b5fd81
rgbrgb(181, 253, 129)
hslhsl(95, 97%, 75%)
oklchoklch(0.92 0.172 133.6)
Closest name: Celery Mousse (#c1fd95)Relative luminance 0.8166

Colors that go with #b5fd81

Violet, Gold and Red 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 →

#ca81fd

#f3fd81 · #81fd8c

#81b5fd · #fd81b5

Split-complementary

Open in tool →

#8c81fd · #fd81f3

#81f3fd · #ca81fd · #fd8c81

Contrast

#b5fd81 as textRatioAAAA largeAAAFix
Aaon white
1.21:1failfailfail
  • AA: use #388302 as the text (4.76:1)
  • AAA: use #2b6402 as the text (7.18:1)
  • AA: or shift the background to #696969 (4.53:1)
  • AAA: or shift the background to #4a4a4a (7.31:1)
Aaon black
17.33:1passpasspassPasses 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 #b5fd81 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

#b5fd81 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b5fd81
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 #b5fd81 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b5fd81-aabea2-5d4edf-1f2d20-f0f1e9?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