Color

#397b23

#397b23
hex#397b23
rgbrgb(57, 123, 35)
hslhsl(105, 56%, 31%)
oklchoklch(0.52 0.139 139)
Closest name: Cucumber Queen (#3c773c)Relative luminance 0.1516

Colors that go with #397b23

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 →

#65237b

#657b23 · #237b39

#23397b · #7b2339

Split-complementary

Open in tool →

#39237b · #7b2365

#23657b · #65237b · #7b3923

Contrast

#397b23 as textRatioAAAA largeAAAFix
Aaon white
5.21:1passpassfail
  • AAA: use #2e631c as the text (7.2:1)
Aaon black
4.03:1failpassfail
  • AA: use #3e8726 as the text (4.7:1)
  • AAA: use #4fab30 as the text (7.2:1)
  • AA: or shift the background to #f0f0f0 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #397b23 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 #397b23
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 #397b23 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397b23-a6bea2-754edf-1f2d22-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