Color

#397f45

#397f45
hex#397f45
rgbrgb(57, 127, 69)
hslhsl(130, 38%, 36%)
oklchoklch(0.536 0.114 147.4)
Closest name: Bold Irish (#2a814d)Relative luminance 0.1648

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#7f3973

#507f39 · #397f67

#45397f · #7f4539

Split-complementary

Open in tool →

#67397f · #7f3950

#39507f · #7f3973 · #7f6739

Contrast

#397f45 as textRatioAAAA largeAAAFix
Aaon white
4.89:1passpassfail
  • AAA: use #2c6335 as the text (7.13:1)
Aaon black
4.3:1failpassfail
  • AA: use #3c8648 as the text (4.7:1)
  • AAA: use #4ca95b as the text (7.13:1)
  • AA: or shift the background to #f7f7f7 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #397f45 as the background.

Brands using this color

mcpConnect your agent — build around #397f45
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #397f45 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397f45-a2beaa-b14edf-1f2d28-ecf1e9?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