Color

#fbfb56

#fbfb56
hex#fbfb56
rgbrgb(251, 251, 86)
hslhsl(60, 95%, 66%)
oklchoklch(0.96 0.179 109.4)
Closest name: Biohazard Suit (#fbfb4c)Relative luminance 0.9018

Colors that go with #fbfb56

Lilac, Blue 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 →

#5656fb

#fba856 · #a8fb56

#56fbfb · #fb56fb

Split-complementary

Open in tool →

#56a8fb · #a856fb

#56fba8 · #5656fb · #fb56a8

Contrast

#fbfb56 as textRatioAAAA largeAAAFix
Aaon white
1.1:1failfailfail
  • AA: use #777703 as the text (4.75:1)
  • AAA: use #5a5a02 as the text (7.25:1)
  • AA: or shift the background to #6e6e6e (4.62:1)
  • AAA: or shift the background to #525252 (7.08:1)
Aaon black
19.04:1passpasspassPasses 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 #fbfb56 as the background.

Brands using this color

mcpConnect your agent — build around #fbfb56
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 #fbfb56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fbfb56-bbbea2-4e94df-272d1f-f1ede9?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