Color

#397d2c

#397d2c
hex#397d2c
rgbrgb(57, 125, 44)
hslhsl(110, 48%, 33%)
oklchoklch(0.527 0.135 140.6)
Closest name: Cucumber Queen (#3c773c)Relative luminance 0.1572

Colors that go with #397d2c

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 →

#6f2c7d

#627d2c · #2c7d47

#2c397d · #7d2c39

Split-complementary

Open in tool →

#472c7d · #7d2c62

#2c627d · #6f2c7d · #7d472c

Contrast

#397d2c as textRatioAAAA largeAAAFix
Aaon white
5.07:1passpassfail
  • AAA: use #2d6222 as the text (7.29:1)
Aaon black
4.14:1failpassfail
  • AA: use #3d842e as the text (4.54:1)
  • AAA: use #4eaa3c as the text (7.14:1)
  • AA: or shift the background to #f2f2f2 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #397d2c as the background.

Brands using this color

mcpConnect your agent — build around #397d2c
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 #397d2c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397d2c-a3bea2-814edf-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