Color

#4eb771

#4eb771
hex#4eb771
rgbrgb(78, 183, 113)
hslhsl(140, 42%, 51%)
oklchoklch(0.7 0.142 151.9)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3668

Colors that go with #4eb771

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 →

#b74e94

#5fb74e · #4eb7a5

#714eb7 · #b7714e

Split-complementary

Open in tool →

#a54eb7 · #b74e5f

#4e5fb7 · #b74e94 · #b7a54e

Contrast

#4eb771 as textRatioAAAA largeAAAFix
Aaon white
2.52:1failfailfail
  • AA: use #35824f as the text (4.71:1)
  • AAA: use #28623b as the text (7.24:1)
  • AA: or shift the background to #383838 (4.65:1)
  • AAA: or shift the background to #171717 (7.12:1)
Aaon black
8.34:1passpasspassPasses 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 #4eb771 as the background.

Brands using this color

mcpConnect your agent — build around #4eb771
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 #4eb771 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4eb771-a2beaf-c259d4-1f2d2a-ebf1e9?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