Color

#3f0937

#3f0937
hex#3f0937
rgbrgb(63, 9, 55)
hslhsl(309, 75%, 14%)
oklchoklch(0.261 0.1 334.9)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0153

Colors that go with #3f0937

Charcoal, Sea Green and Teal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#093e11

#2c093e · #3e091c

#363e09 · #09363e

Split-complementary

Open in tool →

#1c3e09 · #093e2c

#3e2c09 · #093e11 · #091c3e

Contrast

#3f0937 as textRatioAAAA largeAAAFix
Aaon white
16.08:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #d21eb7 as the text (4.61:1)
  • AAA: use #e963d5 as the text (7.21:1)
  • AA: or shift the background to #8a8a8a (4.66:1)
  • AAA: or shift the background to #ababab (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f0937 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

#3f0937 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f0937
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3f0937 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f0937-c19fb8-85cb62-2d1f25-eee9f1?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