Color

#a9b337

#a9b337
hex#a9b337
rgbrgb(169, 179, 55)
hslhsl(65, 53%, 46%)
oklchoklch(0.736 0.144 113.9)
Closest name: Citrus (#9fb70a)Relative luminance 0.4095

Colors that go with #a9b337

Blue, Champagne 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 →

#4137b3

#b38037 · #6bb337

#37a9b3 · #b337a9

Split-complementary

Open in tool →

#376bb3 · #8037b3

#37b380 · #4137b3 · #b3376b

Contrast

#a9b337 as textRatioAAAA largeAAAFix
Aaon white
2.29:1failfailfail
  • AA: use #727925 as the text (4.69:1)
  • AAA: use #555a1c as the text (7.33:1)
  • AA: or shift the background to #404040 (4.54:1)
  • AAA: or shift the background to #212121 (7.05:1)
Aaon black
9.19:1passpasspassPasses 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 #a9b337 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 #a9b337
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 #a9b337 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a9b337-b8bea2-4e88df-262d1f-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