Color

#40b40e

#40b40e
hex#40b40e
rgbrgb(64, 180, 14)
hslhsl(102, 86%, 38%)
oklchoklch(0.677 0.211 139.4)
Closest name: Green Glimmer (#00bb00)Relative luminance 0.3376

Colors that go with #40b40e

Taupe, Medium Orchid and Medium Purple 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 →

#820eb4

#93b40e · #0eb42f

#0e40b4 · #b40e40

Split-complementary

Open in tool →

#2f0eb4 · #b40e93

#0e93b4 · #820eb4 · #b42f0e

Contrast

#40b40e as textRatioAAAA largeAAAFix
Aaon white
2.71:1failfailfail
  • AA: use #2f850a as the text (4.69:1)
  • AAA: use #236407 as the text (7.25:1)
  • AA: or shift the background to #333333 (4.66:1)
  • AAA: or shift the background to #0f0f0f (7.08:1)
Aaon black
7.75:1passpasspassPasses 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 #40b40e 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 #40b40e
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 #40b40e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40b40e-a7bea2-6e4edf-1f2d21-eff1e9?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