Color

#b5f628

#b5f628
hex#b5f628
rgbrgb(181, 246, 40)
hslhsl(79, 92%, 56%)
oklchoklch(0.897 0.222 127)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.7589

Colors that go with #b5f628

Crimson, Red and Plum 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 →

#6928f6

#f6d028 · #4df628

#28b5f6 · #f628b5

Split-complementary

Open in tool →

#284df6 · #d028f6

#28f6d0 · #6928f6 · #f6284d

Contrast

#b5f628 as textRatioAAAA largeAAAFix
Aaon white
1.3:1failfailfail
  • AA: use #597f05 as the text (4.71:1)
  • AAA: use #446204 as the text (7.01:1)
  • AA: or shift the background to #636363 (4.63:1)
  • AAA: or shift the background to #474747 (7.16:1)
Aaon black
16.18:1passpasspassPasses 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 #b5f628 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 #b5f628
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 #b5f628 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b5f628-b2bea2-4e66df-232d1f-f1f0e9?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