Color

#a9bf31

#a9bf31
hex#a9bf31
rgbrgb(169, 191, 49)
hslhsl(69, 59%, 47%)
oklchoklch(0.763 0.161 118.2)
Closest name: Celery (#b4c04c)Relative luminance 0.4592

Colors that go with #a9bf31

Blue, Charcoal and Dark Olive Green 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 →

#4631bf

#bf8d31 · #63bf31

#31a9bf · #bf31a9

Split-complementary

Open in tool →

#3163bf · #8d31bf

#31bf8d · #4631bf · #bf3163

Contrast

#a9bf31 as textRatioAAAA largeAAAFix
Aaon white
2.06:1failfailfail
  • AA: use #6c7a1f as the text (4.73:1)
  • AAA: use #535d18 as the text (7.13:1)
  • AA: or shift the background to #474747 (4.51:1)
  • AAA: or shift the background to #292929 (7.05:1)
Aaon black
10.18:1passpasspassPasses 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 #a9bf31 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 #a9bf31
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 #a9bf31 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a9bf31-b7bea2-4e7edf-252d1f-f1eee9?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