Color

#3a8a28

#3a8a28
hex#3a8a28
rgbrgb(58, 138, 40)
hslhsl(109, 55%, 35%)
oklchoklch(0.563 0.154 140.3)
Closest name: Overgrown Mausoleum (#448833)Relative luminance 0.1923

Colors that go with #3a8a28

Charcoal, Royal Blue and Dark Orchid 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 →

#78288a

#6b8a28 · #288a47

#283a8a · #8a283a

Split-complementary

Open in tool →

#47288a · #8a286b

#286b8a · #78288a · #8a4728

Contrast

#3a8a28 as textRatioAAAA largeAAAFix
Aaon white
4.33:1failpassfail
  • AA: use #388627 as the text (4.56:1)
  • AAA: use #2a631d as the text (7.24:1)
  • AA: or shift the background to #0a0a0a (4.57:1)
Aaon black
4.85:1passpassfail
  • AAA: use #47aa31 as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a8a28 as the background.

Brands using this color

mcpConnect your agent — build around #3a8a28
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 #3a8a28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a8a28-a4bea2-7e4edf-1f2d23-eef1e9?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