Color

#40a055

#40a055
hex#40a055
rgbrgb(64, 160, 85)
hslhsl(133, 43%, 44%)
oklchoklch(0.63 0.143 148.1)
Closest name: Golf Course (#5a9e4b)Relative luminance 0.2689

Colors that go with #40a055

Charcoal, Blue and Crimson 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 →

#a0408c

#5ba040 · #40a085

#5540a0 · #a05540

Split-complementary

Open in tool →

#8540a0 · #a0405b

#405ba0 · #a0408c · #a08540

Contrast

#40a055 as textRatioAAAA largeAAAFix
Aaon white
3.29:1failpassfail
  • AA: use #348345 as the text (4.69:1)
  • AAA: use #276234 as the text (7.28:1)
  • AA: or shift the background to #262626 (4.6:1)
Aaon black
6.38:1passpassfail
  • AAA: use #44ab5b as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40a055 as the background.

Brands using this color

mcpConnect your agent — build around #40a055
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 #40a055 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40a055-a2beab-b84edf-1f2d28-ebf1e9?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