Color

#40a05d

#40a05d
hex#40a05d
rgbrgb(64, 160, 93)
hslhsl(138, 43%, 44%)
oklchoklch(0.632 0.135 150.6)
Closest name: Bulma Hair (#359e6b)Relative luminance 0.2702

Colors that go with #40a05d

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 →

#a04083

#53a040 · #40a08d

#5d40a0 · #a05d40

Split-complementary

Open in tool →

#8d40a0 · #a04053

#4053a0 · #a04083 · #a08d40

Contrast

#40a05d as textRatioAAAA largeAAAFix
Aaon white
3.28:1failpassfail
  • AA: use #34834c as the text (4.67:1)
  • AAA: use #276239 as the text (7.26:1)
  • AA: or shift the background to #262626 (4.62:1)
Aaon black
6.4:1passpassfail
  • AAA: use #43a861 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40a05d as the background.

Brands using this color

mcpConnect your agent — build around #40a05d
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 #40a05d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40a05d-a2beae-be59d4-1f2d29-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