Color

#40910d

#40910d
hex#40910d
rgbrgb(64, 145, 13)
hslhsl(97, 84%, 31%)
oklchoklch(0.583 0.173 137.4)
Closest name: Emerald (#028f1e)Relative luminance 0.2137

Colors that go with #40910d

Crimson, Royal Blue and Charcoal 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 →

#5f0d91

#82910d · #0d911c

#0d4091 · #910d40

Split-complementary

Open in tool →

#1c0d91 · #910d82

#0d8291 · #5f0d91 · #911c0d

Contrast

#40910d as textRatioAAAA largeAAAFix
Aaon white
3.98:1failpassfail
  • AA: use #39830b as the text (4.75:1)
  • AAA: use #2b6309 as the text (7.26:1)
  • AA: or shift the background to #171717 (4.5:1)
Aaon black
5.27:1passpassfail
  • AAA: use #4cae0f as the text (7.37:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40910d 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 #40910d
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 #40910d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40910d-a9bea2-624edf-1f2d20-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