Color

#40c949

#40c949
hex#40c949
rgbrgb(64, 201, 73)
hslhsl(124, 56%, 52%)
oklchoklch(0.736 0.206 144.1)
Closest name: Battletoad (#11cc55)Relative luminance 0.4334

Colors that go with #40c949

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 →

#c940c0

#7bc940 · #40c98e

#4940c9 · #c94940

Split-complementary

Open in tool →

#8e40c9 · #c9407b

#407bc9 · #c940c0 · #c98e40

Contrast

#40c949 as textRatioAAAA largeAAAFix
Aaon white
2.17:1failfailfail
  • AA: use #26872d as the text (4.58:1)
  • AAA: use #1c6321 as the text (7.35:1)
  • AA: or shift the background to #424242 (4.63:1)
  • AAA: or shift the background to #242424 (7.15:1)
Aaon black
9.67:1passpasspassPasses 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 #40c949 as the background.

Brands using this color

mcpConnect your agent — build around #40c949
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 #40c949 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40c949-a2bea7-a24edf-1f2d26-edf1e9?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