Color

#3f250d

#3f250d
hex#3f250d
rgbrgb(63, 37, 13)
hslhsl(29, 66%, 15%)
oklchoklch(0.292 0.053 60.7)
Closest name: Chocolate Castle (#452207)Relative luminance 0.0241

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0d273f

#3f0d0e · #3f3f0d

#0d3f25 · #250d3f

Split-complementary

Open in tool →

#0d3f3f · #0d0e3f

#0e3f0d · #0d273f · #3f0d3f

Contrast

#3f250d as textRatioAAAA largeAAAFix
Aaon white
14.17:1passpasspassPasses AAA — no fix needed.
Aaon black
1.48:1failfailfail
  • AA: use #a96423 as the text (4.53:1)
  • AAA: use #d58234 as the text (7.07:1)
  • AA: or shift the background to #949494 (4.67:1)
  • AAA: or shift the background to #b8b8b8 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f250d as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#3f250d reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f250d
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 #3f250d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f250d-c4b49c-62cbcb-2d2c1f-f1e9e9?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