Color

#3fa673

#3fa673
hex#3fa673
rgbrgb(63, 166, 115)
hslhsl(150, 45%, 45%)
oklchoklch(0.652 0.123 158.4)
Closest name: Cosmic Green (#30a877)Relative luminance 0.2957

Colors that go with #3fa673

Charcoal, Crimson and Denim 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 →

#a63f73

#3fa63f · #3fa6a6

#733fa6 · #a6733f

Split-complementary

Open in tool →

#a63fa6 · #a63f3f

#3f3fa6 · #a63f73 · #a6a63f

Contrast

#3fa673 as textRatioAAAA largeAAAFix
Aaon white
3.04:1failpassfail
  • AA: use #32855c as the text (4.52:1)
  • AAA: use #266445 as the text (7.02:1)
  • AA: or shift the background to #2b2b2b (4.66:1)
Aaon black
6.91:1passpassfail
  • AAA: use #41aa75 as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3fa673 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 #3fa673
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 #3fa673 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fa673-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