Color

#a3dd13

#a3dd13
hex#a3dd13
rgbrgb(163, 221, 19)
hslhsl(77, 84%, 47%)
oklchoklch(0.827 0.209 126.6)
Closest name: Conifer (#b1dd52)Relative luminance 0.5955

Colors that go with #a3dd13

Deep Sky Blue, 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 →

#4c13dd

#ddb113 · #3fdd13

#13a3dd · #dd13a3

Split-complementary

Open in tool →

#133fdd · #b113dd

#13ddb1 · #4c13dd · #dd133f

Contrast

#a3dd13 as textRatioAAAA largeAAAFix
Aaon white
1.63:1failfailfail
  • AA: use #5e7f0b as the text (4.65:1)
  • AAA: use #465e08 as the text (7.33:1)
  • AA: or shift the background to #545454 (4.66:1)
  • AAA: or shift the background to #383838 (7.21:1)
Aaon black
12.91:1passpasspassPasses 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 #a3dd13 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 #a3dd13
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 #a3dd13 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a3dd13-b3bea2-4e6bdf-232d1f-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