Color

#3c904d

#3c904d
hex#3c904d
rgbrgb(60, 144, 77)
hslhsl(132, 41%, 40%)
oklchoklch(0.585 0.129 147.9)
Closest name: Fern (#548d44)Relative luminance 0.2144

Colors that go with #3c904d

Charcoal, Crimson and Royal 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 →

#903c7f

#55903c · #3c9077

#4d3c90 · #904d3c

Split-complementary

Open in tool →

#773c90 · #903c55

#3c5590 · #903c7f · #90773c

Contrast

#3c904d as textRatioAAAA largeAAAFix
Aaon white
3.97:1failpassfail
  • AA: use #388547 as the text (4.55:1)
  • AAA: use #296134 as the text (7.36:1)
  • AA: or shift the background to #171717 (4.51:1)
Aaon black
5.29:1passpassfail
  • AAA: use #47a95a as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c904d 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 #3c904d
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 #3c904d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c904d-a2beab-b64edf-1f2d28-ecf1e9?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