Color

#394047

#394047
hex#394047
rgbrgb(57, 64, 71)
hslhsl(210, 11%, 25%)
oklchoklch(0.368 0.015 248.2)
Closest name: Arsenic (#3b444b)Relative luminance 0.0499

Tints & shades

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

Harmonies

Complementary

Open in tool →

#474039

#394747 · #393947

#473940 · #404739

Split-complementary

Open in tool →

#473939 · #474739

#473947 · #474039 · #394739

Contrast

#394047 as textRatioAAAA largeAAAFix
Aaon white
10.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2:1failfailfail
  • AA: use #6b7885 as the text (4.65:1)
  • AAA: use #8e99a4 as the text (7.24:1)
  • AA: or shift the background to #ababab (4.58:1)
  • AAA: or shift the background to #d4d4d4 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #394047 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#394047 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #394047
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 #394047 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/394047-9cabc4-df514e-1f202d-e9f1f1?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