Color

#397f34

#397f34
hex#397f34
rgbrgb(57, 127, 52)
hslhsl(116, 42%, 35%)
oklchoklch(0.533 0.13 142.3)
Closest name: Bold Irish (#2a814d)Relative luminance 0.163

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7a347f

#5e7f34 · #347f54

#34397f · #7f3439

Split-complementary

Open in tool →

#54347f · #7f345e

#345e7f · #7a347f · #7f5434

Contrast

#397f34 as textRatioAAAA largeAAAFix
Aaon white
4.93:1passpassfail
  • AAA: use #2c6228 as the text (7.28:1)
Aaon black
4.26:1failpassfail
  • AA: use #3c8637 as the text (4.66:1)
  • AAA: use #4caa46 as the text (7.15:1)
  • AA: or shift the background to #f5f5f5 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #397f34 as the background.

Brands using this color

mcpConnect your agent — build around #397f34
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 #397f34 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397f34-a2bea3-8f4edf-1f2d24-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