Color

#3f0603

#3f0603
hex#3f0603
rgbrgb(63, 6, 3)
hslhsl(3, 91%, 13%)
oklchoklch(0.239 0.087 29.8)
Closest name: Black Chocolate (#441100)Relative luminance 0.0119

Tints & shades

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

Harmonies

Complementary

Open in tool →

#033c3f

#3f031e · #3f2403

#033f06 · #06033f

Split-complementary

Open in tool →

#033f24 · #031e3f

#1e3f03 · #033c3f · #24033f

Contrast

#3f0603 as textRatioAAAA largeAAAFix
Aaon white
16.95:1passpasspassPasses AAA — no fix needed.
Aaon black
1.24:1failfailfail
  • AA: use #ea160b as the text (4.62:1)
  • AAA: use #f7665e as the text (7.02:1)
  • AA: or shift the background to #858585 (4.59:1)
  • AAA: or shift the background to #a8a8a8 (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 #3f0603 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

#3f0603 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f0603
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 #3f0603 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f0603-c4a39c-62cb9d-2d261f-f1e9ed?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