Color

#a3fa4c

#a3fa4c
hex#a3fa4c
rgbrgb(163, 250, 76)
hslhsl(90, 95%, 64%)
oklchoklch(0.898 0.218 132.5)
Closest name: greenyellow (#adff2f)Relative luminance 0.7668

Colors that go with #a3fa4c

Violet, Blue 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 →

#a34cfa

#fafa4c · #4cfa4c

#4ca3fa · #fa4ca3

Split-complementary

Open in tool →

#4c4cfa · #fa4cfa

#4cfafa · #a34cfa · #fa4c4c

Contrast

#a3fa4c as textRatioAAAA largeAAAFix
Aaon white
1.29:1failfailfail
  • AA: use #458603 as the text (4.5:1)
  • AAA: use #336303 as the text (7.18:1)
  • AA: or shift the background to #636363 (4.67:1)
  • AAA: or shift the background to #474747 (7.23:1)
Aaon black
16.34:1passpasspassPasses 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 #a3fa4c 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 #a3fa4c
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 #a3fa4c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a3fa4c-adbea2-514edf-202d1f-f1f1e9?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