Color

#cff631

#cff631
hex#cff631
rgbrgb(207, 246, 49)
hslhsl(72, 92%, 58%)
oklchoklch(0.914 0.207 121)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.794

Colors that go with #cff631

Blue, Crimson and Red 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 →

#5931f6

#f6bb31 · #6cf631

#31cff6 · #f631cf

Split-complementary

Open in tool →

#316cf6 · #bb31f6

#31f6bb · #5931f6 · #f6316c

Contrast

#cff631 as textRatioAAAA largeAAAFix
Aaon white
1.24:1failfailfail
  • AA: use #677f05 as the text (4.55:1)
  • AAA: use #4b5d04 as the text (7.33:1)
  • AA: or shift the background to #666666 (4.62:1)
  • AAA: or shift the background to #4a4a4a (7.12:1)
Aaon black
16.88:1passpasspassPasses 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 #cff631 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 #cff631
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 #cff631 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cff631-b5bea2-4e77df-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