Color

#3f0324

#3f0324
hex#3f0324
rgbrgb(63, 3, 36)
hslhsl(327, 91%, 13%)
oklchoklch(0.245 0.095 353.2)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0125

Tints & shades

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

Harmonies

Complementary

Open in tool →

#033f1e

#3c033f · #3f0306

#243f03 · #03243f

Split-complementary

Open in tool →

#063f03 · #033f3c

#3f3c03 · #033f1e · #03063f

Contrast

#3f0324 as textRatioAAAA largeAAAFix
Aaon white
16.8:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #e00b80 as the text (4.53:1)
  • AAA: use #f759b0 as the text (7.01:1)
  • AA: or shift the background to #858585 (4.55:1)
  • AAA: or shift the background to #a8a8a8 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f0324 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

#3f0324 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f0324
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 #3f0324 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f0324-c19fae-66cb62-2d1f21-f1e9f1?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