Color

#397a1f

#397a1f
hex#397a1f
rgbrgb(57, 122, 31)
hslhsl(103, 59%, 30%)
oklchoklch(0.517 0.14 138.4)
Closest name: Forest Empress (#3d7016)Relative luminance 0.1489

Colors that go with #397a1f

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 →

#601f7a

#667a1f · #1f7a33

#1f397a · #7a1f39

Split-complementary

Open in tool →

#331f7a · #7a1f66

#1f667a · #601f7a · #7a331f

Contrast

#397a1f as textRatioAAAA largeAAAFix
Aaon white
5.28:1passpassfail
  • AAA: use #2f651a as the text (7.01:1)
Aaon black
3.98:1failpassfail
  • AA: use #3f8623 as the text (4.65:1)
  • AAA: use #50aa2c as the text (7.13:1)
  • AA: or shift the background to #ededed (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #397a1f as the background.

Brands using this color

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

Fonts for this mood

#397a1f reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #397a1f
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 #397a1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397a1f-a6bea2-704edf-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