Color

#6cc440

#6cc440
hex#6cc440
rgbrgb(108, 196, 64)
hslhsl(100, 53%, 51%)
oklchoklch(0.738 0.187 137)
Closest name: Emerald Glitter (#66bb00)Relative luminance 0.4304

Colors that go with #6cc440

Blue, Charcoal 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 →

#9840c4

#aec440 · #40c456

#406cc4 · #c4406c

Split-complementary

Open in tool →

#5640c4 · #c440ae

#40aec4 · #9840c4 · #c45640

Contrast

#6cc440 as textRatioAAAA largeAAAFix
Aaon white
2.19:1failfailfail
  • AA: use #478529 as the text (4.51:1)
  • AAA: use #34621e as the text (7.21:1)
  • AA: or shift the background to #424242 (4.6:1)
  • AAA: or shift the background to #242424 (7.1:1)
Aaon black
9.61:1passpasspassPasses 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 #6cc440 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #6cc440
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 #6cc440 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6cc440-a8bea2-694edf-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