Color

#398618

#398618
hex#398618
rgbrgb(57, 134, 24)
hslhsl(102, 70%, 31%)
oklchoklch(0.55 0.159 138.5)
Closest name: Forest Green (#228b22)Relative luminance 0.1799

Colors that go with #398618

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 →

#651886

#708618 · #18862e

#183986 · #861839

Split-complementary

Open in tool →

#2e1886 · #861870

#187086 · #651886 · #862e18

Contrast

#398618 as textRatioAAAA largeAAAFix
Aaon white
4.57:1passpassfail
  • AAA: use #2a6412 as the text (7.17:1)
Aaon black
4.6:1passpassfail
  • AAA: use #49ad1f as the text (7.28:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #398618 as the background.

Brands using this color

mcpConnect your agent — build around #398618
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 #398618 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/398618-a7bea2-6e4edf-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