Color

#3caa78

#3caa78
hex#3caa78
rgbrgb(60, 170, 120)
hslhsl(153, 48%, 45%)
oklchoklch(0.662 0.125 160.1)
Closest name: Cosmic Green (#30a877)Relative luminance 0.3107

Colors that go with #3caa78

Charcoal, Blue and Cornflower 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 →

#aa3c6d

#3caa41 · #3ca4aa

#783caa · #aa783c

Split-complementary

Open in tool →

#aa3ca4 · #aa413c

#413caa · #aa3c6d · #a4aa3c

Contrast

#3caa78 as textRatioAAAA largeAAAFix
Aaon white
2.91:1failfailfail
  • AA: use #2e845e as the text (4.59:1)
  • AAA: use #226245 as the text (7.24:1)
  • AA: or shift the background to #303030 (4.53:1)
  • AAA: or shift the background to #050505 (7:1)
Aaon black
7.21:1passpasspassPasses 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 #3caa78 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 #3caa78
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 #3caa78 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3caa78-a2beb5-d459cc-1f2d2d-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