Color

#37831b

#37831b
hex#37831b
rgbrgb(55, 131, 27)
hslhsl(104, 66%, 31%)
oklchoklch(0.541 0.155 139)
Closest name: Asian Spice (#118822)Relative luminance 0.1712

Colors that go with #37831b

Charcoal, Crimson and Royal 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 →

#671b83

#6b831b · #1b8333

#1b3783 · #831b37

Split-complementary

Open in tool →

#331b83 · #831b6b

#1b6b83 · #671b83 · #83331b

Contrast

#37831b as textRatioAAAA largeAAAFix
Aaon white
4.75:1passpassfail
  • AAA: use #296114 as the text (7.46:1)
Aaon black
4.42:1failpassfail
  • AA: use #38871c as the text (4.65:1)
  • AAA: use #48ae24 as the text (7.36:1)
  • AA: or shift the background to #fafafa (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37831b as the background.

Brands using this color

mcpConnect your agent — build around #37831b
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 #37831b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37831b-a6bea2-724edf-1f2d22-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