Color

#398b09

#398b09
hex#398b09
rgbrgb(57, 139, 9)
hslhsl(98, 88%, 29%)
oklchoklch(0.563 0.171 138)
Closest name: Forest Green (#228b22)Relative luminance 0.1935

Colors that go with #398b09

Royal Blue, Charcoal 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 →

#5b098b

#7a8b09 · #098b1a

#09398b · #8b0939

Split-complementary

Open in tool →

#1a098b · #8b097a

#097a8b · #5b098b · #8b1a09

Contrast

#398b09 as textRatioAAAA largeAAAFix
Aaon white
4.31:1failpassfail
  • AA: use #378609 as the text (4.59:1)
  • AAA: use #296506 as the text (7.1:1)
  • AA: or shift the background to #0d0d0d (4.51:1)
Aaon black
4.87:1passpassfail
  • 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 #398b09 as the background.

Brands using this color

Fonts for this mood

#398b09 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #398b09
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 #398b09 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/398b09-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