Color

#40a043

#40a043
hex#40a043
rgbrgb(64, 160, 67)
hslhsl(122, 43%, 44%)
oklchoklch(0.628 0.159 143.9)
Closest name: Golf Course (#5a9e4b)Relative luminance 0.2664

Colors that go with #40a043

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 →

#a0409d

#6da040 · #40a073

#4340a0 · #a04340

Split-complementary

Open in tool →

#7340a0 · #a0406d

#406da0 · #a0409d · #a07340

Contrast

#40a043 as textRatioAAAA largeAAAFix
Aaon white
3.32:1failpassfail
  • AA: use #348337 as the text (4.72:1)
  • AAA: use #276229 as the text (7.33:1)
  • AA: or shift the background to #262626 (4.56:1)
Aaon black
6.33:1passpassfail
  • AAA: use #44ab48 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40a043 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #40a043
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 #40a043 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40a043-a2bea6-9e4edf-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