Color

#bbfb28

#bbfb28
hex#bbfb28
rgbrgb(187, 251, 40)
hslhsl(78, 96%, 57%)
oklchoklch(0.912 0.225 126.5)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.7971

Colors that go with #bbfb28

Plum, Violet and Charcoal 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 →

#6728fb

#fbd128 · #52fb28

#28bbfb · #fb28bb

Split-complementary

Open in tool →

#2852fb · #d128fb

#28fbd1 · #6728fb · #fb2852

Contrast

#bbfb28 as textRatioAAAA largeAAAFix
Aaon white
1.24:1failfailfail
  • AA: use #5c8203 as the text (4.52:1)
  • AAA: use #435f02 as the text (7.3:1)
  • AA: or shift the background to #666666 (4.63:1)
  • AAA: or shift the background to #4a4a4a (7.15:1)
Aaon black
16.94:1passpasspassPasses 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 #bbfb28 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #bbfb28
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 #bbfb28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bbfb28-b2bea2-4e69df-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