Color

#39494c

#39494c
hex#39494c
rgbrgb(57, 73, 76)
hslhsl(189, 14%, 26%)
oklchoklch(0.393 0.021 210.3)
Closest name: Arsenic (#3b444b)Relative luminance 0.0616

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4c3c39

#394c45 · #39404c

#4c3949 · #494c39

Split-complementary

Open in tool →

#4c3940 · #4c4539

#45394c · #4c3c39 · #404c39

Contrast

#39494c as textRatioAAAA largeAAAFix
Aaon white
9.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.23:1failfailfail
  • AA: use #607b80 as the text (4.64:1)
  • AAA: use #7f9a9f as the text (7.03:1)
  • AA: or shift the background to #b5b5b5 (4.59:1)
  • AAA: or shift the background to #e0e0e0 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #39494c 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

#39494c reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39494c
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 #39494c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39494c-a2b7be-df4e7e-1f252d-e9f1ee?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