Color

#4fb573

#4fb573
hex#4fb573
rgbrgb(79, 181, 115)
hslhsl(141, 41%, 51%)
oklchoklch(0.696 0.136 152.7)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3595

Colors that go with #4fb573

Charcoal, Mustard Yellow 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 →

#b54f91

#5eb54f · #4fb5a6

#734fb5 · #b5734f

Split-complementary

Open in tool →

#a64fb5 · #b54f5e

#4f5eb5 · #b54f91 · #b5a64f

Contrast

#4fb573 as textRatioAAAA largeAAAFix
Aaon white
2.56:1failfailfail
  • AA: use #388553 as the text (4.52:1)
  • AAA: use #29613c as the text (7.32:1)
  • AA: or shift the background to #383838 (4.57:1)
  • AAA: or shift the background to #141414 (7.18:1)
Aaon black
8.19:1passpasspassPasses 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 #4fb573 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 #4fb573
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 #4fb573 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4fb573-a2beaf-c459d4-1f2d2a-eaf1e9?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