Color

#378613

#378613
hex#378613
rgbrgb(55, 134, 19)
hslhsl(101, 75%, 30%)
oklchoklch(0.549 0.163 138.5)
Closest name: Forest Green (#228b22)Relative luminance 0.1791

Colors that go with #378613

Charcoal, Royal Blue and Crimson 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 →

#621386

#718613 · #138628

#133786 · #861337

Split-complementary

Open in tool →

#281386 · #861371

#137186 · #621386 · #862813

Contrast

#378613 as textRatioAAAA largeAAAFix
Aaon white
4.58:1passpassfail
  • AAA: use #29620e as the text (7.37:1)
Aaon black
4.58:1passpassfail
  • AAA: use #46aa18 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #378613 as the background.

Brands using this color

Fonts for this mood

#378613 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #378613
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 #378613 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/378613-a7bea2-6b4edf-1f2d21-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