Color

#409e0a

#409e0a
hex#409e0a
rgbrgb(64, 158, 10)
hslhsl(98, 88%, 33%)
oklchoklch(0.618 0.189 138.3)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.2557

Colors that go with #409e0a

Charcoal, Crimson and Blue 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 →

#680a9e

#8a9e0a · #0a9e1e

#0a409e · #9e0a40

Split-complementary

Open in tool →

#1e0a9e · #9e0a8a

#0a8a9e · #680a9e · #9e1e0a

Contrast

#409e0a as textRatioAAAA largeAAAFix
Aaon white
3.44:1failpassfail
  • AA: use #378609 as the text (4.59:1)
  • AAA: use #296506 as the text (7.1:1)
  • AA: or shift the background to #242424 (4.52:1)
Aaon black
6.11:1passpassfail
  • AAA: use #46ad0b as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #409e0a 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 #409e0a
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 #409e0a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/409e0a-a9bea2-644edf-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