Color

#b5fa61

#b5fa61
hex#b5fa61
rgbrgb(181, 250, 97)
hslhsl(87, 94%, 68%)
oklchoklch(0.909 0.195 130.1)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.7906

Colors that go with #b5fa61

Blue, Crimson and Gold 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 →

#a661fa

#faf261 · #68fa61

#61b5fa · #fa61b5

Split-complementary

Open in tool →

#6168fa · #f261fa

#61faf2 · #a661fa · #fa6168

Contrast

#b5fa61 as textRatioAAAA largeAAAFix
Aaon white
1.25:1failfailfail
  • AA: use #498104 as the text (4.75:1)
  • AAA: use #386303 as the text (7.11:1)
  • AA: or shift the background to #666666 (4.6:1)
  • AAA: or shift the background to #4a4a4a (7.09:1)
Aaon black
16.81:1passpasspassPasses 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 #b5fa61 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 #b5fa61
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 #b5fa61 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b5fa61-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