Color

#3f032a

#3f032a
hex#3f032a
rgbrgb(63, 3, 42)
hslhsl(321, 91%, 13%)
oklchoklch(0.248 0.099 346.9)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0129

Tints & shades

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

Harmonies

Complementary

Open in tool →

#033f18

#36033f · #3f030c

#2a3f03 · #032a3f

Split-complementary

Open in tool →

#0c3f03 · #033f36

#3f3603 · #033f18 · #030c3f

Contrast

#3f032a as textRatioAAAA largeAAAFix
Aaon white
16.7:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #e00b95 as the text (4.65:1)
  • AAA: use #f759c0 as the text (7.14:1)
  • AA: or shift the background to #858585 (4.52:1)
  • AAA: or shift the background to #a8a8a8 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f032a 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

#3f032a reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f032a
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 #3f032a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f032a-c19fb1-70cb62-2d1f22-f0e9f1?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