Color

#cbf339

#cbf339
hex#cbf339
rgbrgb(203, 243, 57)
hslhsl(73, 89%, 59%)
oklchoklch(0.905 0.202 121.6)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.7709

Colors that go with #cbf339

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 →

#6239f3

#f3bf39 · #6ef339

#39cbf3 · #f339cb

Split-complementary

Open in tool →

#396ef3 · #bf39f3

#39f3bf · #6239f3 · #f3396e

Contrast

#cbf339 as textRatioAAAA largeAAAFix
Aaon white
1.28:1failfailfail
  • AA: use #647d07 as the text (4.69:1)
  • AAA: use #4d6006 as the text (7.02:1)
  • AA: or shift the background to #636363 (4.7:1)
  • AAA: or shift the background to #474747 (7.26:1)
Aaon black
16.42:1passpasspassPasses 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 #cbf339 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 #cbf339
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 #cbf339 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cbf339-b5bea2-4e75df-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