Color

#40b04b

#40b04b
hex#40b04b
rgbrgb(64, 176, 75)
hslhsl(126, 47%, 47%)
oklchoklch(0.671 0.173 145)
Closest name: Green Mana (#26b467)Relative luminance 0.3265

Colors that go with #40b04b

Charcoal, Royal Blue and Taupe 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 →

#b040a5

#6db040 · #40b083

#4b40b0 · #b04b40

Split-complementary

Open in tool →

#8340b0 · #b0406d

#406db0 · #b040a5 · #b08340

Contrast

#40b04b as textRatioAAAA largeAAAFix
Aaon white
2.79:1failfailfail
  • AA: use #318739 as the text (4.51:1)
  • AAA: use #24652b as the text (7.07:1)
  • AA: or shift the background to #333333 (4.53:1)
  • AAA: or shift the background to #0a0a0a (7.1:1)
Aaon black
7.53:1passpasspassPasses 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 #40b04b 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 #40b04b
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 #40b04b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40b04b-a2bea8-a74edf-1f2d27-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