Color

#cff551

#cff551
hex#cff551
rgbrgb(207, 245, 81)
hslhsl(74, 89%, 64%)
oklchoklch(0.913 0.189 121.5)
Closest name: Cucumber Milk (#c2f177)Relative luminance 0.7916

Colors that go with #cff551

Blue, Charcoal and Crimson 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 →

#7851f5

#f5c951 · #7df551

#51cff5 · #f551cf

Split-complementary

Open in tool →

#517df5 · #c951f5

#51f5c9 · #7851f5 · #f5517d

Contrast

#cff551 as textRatioAAAA largeAAAFix
Aaon white
1.25:1failfailfail
  • AA: use #627d07 as the text (4.71:1)
  • AAA: use #4b6006 as the text (7.06:1)
  • AA: or shift the background to #666666 (4.6:1)
  • AAA: or shift the background to #4a4a4a (7.1:1)
Aaon black
16.83:1passpasspassPasses 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 #cff551 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 #cff551
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 #cff551 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cff551-b4bea2-4e72df-242d1f-f1efe9?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