Color

#4bb611

#4bb611
hex#4bb611
rgbrgb(75, 182, 17)
hslhsl(99, 83%, 39%)
oklchoklch(0.686 0.208 138.3)
Closest name: Frog (#58bc08)Relative luminance 0.3499

Colors that go with #4bb611

Royal Blue, Taupe and Orchid 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 →

#7c11b6

#9db611 · #11b62a

#114bb6 · #b6114b

Split-complementary

Open in tool →

#2a11b6 · #b6119d

#119db6 · #7c11b6 · #b62a11

Contrast

#4bb611 as textRatioAAAA largeAAAFix
Aaon white
2.63:1failfailfail
  • AA: use #38870d as the text (4.53:1)
  • AAA: use #286209 as the text (7.39:1)
  • AA: or shift the background to #363636 (4.6:1)
  • AAA: or shift the background to #141414 (7.02:1)
Aaon black
8:1passpasspassPasses 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 #4bb611 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 #4bb611
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 #4bb611 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4bb611-a8bea2-664edf-1f2d21-f0f1e9?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