Color

#a9c412

#a9c412
hex#a9c412
rgbrgb(169, 196, 18)
hslhsl(69, 83%, 42%)
oklchoklch(0.773 0.179 119.3)
Closest name: yellowgreen (#9acd32)Relative luminance 0.4796

Colors that go with #a9c412

Dark Orange, Taupe 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 →

#2d12c4

#c48612 · #50c412

#12a9c4 · #c412a9

Split-complementary

Open in tool →

#1250c4 · #8612c4

#12c486 · #2d12c4 · #c41250

Contrast

#a9c412 as textRatioAAAA largeAAAFix
Aaon white
1.98:1failfailfail
  • AA: use #6d7e0c as the text (4.53:1)
  • AAA: use #515d09 as the text (7.19:1)
  • AA: or shift the background to #474747 (4.69:1)
  • AAA: or shift the background to #2b2b2b (7.14:1)
Aaon black
10.59:1passpasspassPasses 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 #a9c412 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 #a9c412
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 #a9c412 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a9c412-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