Color

#397474

#397474
hex#397474
rgbrgb(57, 116, 116)
hslhsl(180, 34%, 34%)
oklchoklch(0.52 0.062 195.4)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1462

Tints & shades

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

Harmonies

Complementary

Open in tool →

#743939

#397457 · #395774

#743974 · #747439

Split-complementary

Open in tool →

#743957 · #745739

#573974 · #743939 · #577439

Contrast

#397474 as textRatioAAAA largeAAAFix
Aaon white
5.35:1passpassfail
  • AAA: use #2f6060 as the text (7.09:1)
Aaon black
3.92:1failpassfail
  • AA: use #408282 as the text (4.73:1)
  • AAA: use #51a4a4 as the text (7.2:1)
  • AA: or shift the background to #ededed (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 #397474 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 #397474
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 #397474 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397474-a2bbbe-d45994-1f272d-e9f1ed?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