Color

#397f0b

#397f0b
hex#397f0b
rgbrgb(57, 127, 11)
hslhsl(96, 84%, 27%)
oklchoklch(0.53 0.156 137.1)
Closest name: green (#008000)Relative luminance 0.1607

Colors that go with #397f0b

Charcoal, Royal Blue 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 →

#500b7f

#737f0b · #0b7f17

#0b397f · #7f0b39

Split-complementary

Open in tool →

#170b7f · #7f0b73

#0b737f · #500b7f · #7f170b

Contrast

#397f0b as textRatioAAAA largeAAAFix
Aaon white
4.98:1passpassfail
  • AAA: use #2d6309 as the text (7.24:1)
Aaon black
4.21:1failpassfail
  • AA: use #3e880c as the text (4.73:1)
  • AAA: use #4eae0f as the text (7.39:1)
  • AA: or shift the background to #f5f5f5 (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 #397f0b as the background.

Brands using this color

Fonts for this mood

#397f0b reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #397f0b
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 #397f0b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397f0b-aabea2-5f4edf-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