Color

#40a40a

#40a40a
hex#40a40a
rgbrgb(64, 164, 10)
hslhsl(99, 89%, 34%)
oklchoklch(0.634 0.195 138.6)
Closest name: Botanical Garden (#44aa11)Relative luminance 0.2766

Colors that go with #40a40a

Blue, Dodger Blue and Taupe 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 →

#6e0aa4

#8da40a · #0aa421

#0a40a4 · #a40a40

Split-complementary

Open in tool →

#210aa4 · #a40a8d

#0a8da4 · #6e0aa4 · #a4210a

Contrast

#40a40a as textRatioAAAA largeAAAFix
Aaon white
3.21:1failpassfail
  • AA: use #348708 as the text (4.55:1)
  • AAA: use #276506 as the text (7.12:1)
  • AA: or shift the background to #292929 (4.53:1)
Aaon black
6.53:1passpassfail
  • AAA: use #43ae0a as the text (7.3:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40a40a 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 #40a40a
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 #40a40a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40a40a-a8bea2-664edf-1f2d21-f0f1e9?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