Color

#a3e580

#a3e580
hex#a3e580
rgbrgb(163, 229, 128)
hslhsl(99, 66%, 70%)
oklchoklch(0.855 0.148 135.5)
Closest name: lightgreen (#90ee90)Relative luminance 0.6538

Colors that go with #a3e580

Charcoal, Plum and Blue 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 →

#c280e5

#d6e580 · #80e58f

#80a3e5 · #e580a3

Split-complementary

Open in tool →

#8f80e5 · #e580d6

#80d6e5 · #c280e5 · #e58f80

Contrast

#a3e580 as textRatioAAAA largeAAAFix
Aaon white
1.49:1failfailfail
  • AA: use #3f831b as the text (4.69:1)
  • AAA: use #2f6114 as the text (7.39:1)
  • AA: or shift the background to #595959 (4.7:1)
  • AAA: or shift the background to #3d3d3d (7.28:1)
Aaon black
14.08:1passpasspassPasses 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 #a3e580 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#a3e580 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a3e580
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 #a3e580 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a3e580-a8bea2-664edf-1f2d21-f0f1e9?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