Color

#3f2731

#3f2731
hex#3f2731
rgbrgb(63, 39, 49)
hslhsl(335, 24%, 20%)
oklchoklch(0.306 0.039 353)
Closest name: Castro (#44232f)Relative luminance 0.0273

Tints & shades

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

Harmonies

Complementary

Open in tool →

#273f35

#3f273d · #3f2927

#313f27 · #27313f

Split-complementary

Open in tool →

#273f29 · #273d3f

#3d3f27 · #273f35 · #29273f

Contrast

#3f2731 as textRatioAAAA largeAAAFix
Aaon white
13.58:1passpasspassPasses AAA — no fix needed.
Aaon black
1.55:1failfailfail
  • AA: use #a0647d as the text (4.61:1)
  • AAA: use #b78a9d as the text (7.14:1)
  • AA: or shift the background to #969696 (4.59:1)
  • AAA: or shift the background to #bdbdbd (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f2731 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

#3f2731 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f2731
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 #3f2731 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f2731-c49ca8-62cb6d-2d201f-f1e9f0?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