Color

#3cb478

#3cb478
hex#3cb478
rgbrgb(60, 180, 120)
hslhsl(150, 50%, 47%)
oklchoklch(0.688 0.139 157.4)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3496

Colors that go with #3cb478

Charcoal, Mustard Yellow and Taupe 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.

Real palettes that use #3cb478

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#b43c78

#3cb43c · #3cb4b4

#783cb4 · #b4783c

Split-complementary

Open in tool →

#b43cb4 · #b43c3c

#3c3cb4 · #b43c78 · #b4b43c

Contrast

#3cb478 as textRatioAAAA largeAAAFix
Aaon white
2.63:1failfailfail
  • AA: use #2d8659 as the text (4.5:1)
  • AAA: use #216342 as the text (7.17:1)
  • AA: or shift the background to #363636 (4.6:1)
  • AAA: or shift the background to #141414 (7.01:1)
Aaon black
7.99:1passpasspassPasses 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 #3cb478 as the background.

Brands using this color

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

Palettes built around it

mcpConnect your agent — build around #3cb478
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 #3cb478 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3cb478-a2beb3-d459d2-1f2d2c-e9f1ea?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