Color

#398d2a

#398d2a
hex#398d2a
rgbrgb(57, 141, 42)
hslhsl(111, 54%, 36%)
oklchoklch(0.571 0.157 140.8)
Closest name: Forest Green (#228b22)Relative luminance 0.2009

Colors that go with #398d2a

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 →

#7f2a8d

#6b8d2a · #2a8d4d

#2a398d · #8d2a39

Split-complementary

Open in tool →

#4d2a8d · #8d2a6b

#2a6b8d · #7f2a8d · #8d4d2a

Contrast

#398d2a as textRatioAAAA largeAAAFix
Aaon white
4.19:1failpassfail
  • AA: use #368628 as the text (4.57:1)
  • AAA: use #28621d as the text (7.36:1)
  • AA: or shift the background to #0f0f0f (4.58:1)
Aaon black
5.02:1passpassfail
  • AAA: use #46ad34 as the text (7.29:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #398d2a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #398d2a
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 #398d2a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/398d2a-a3bea2-834edf-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