Color

#3d0a2e

#3d0a2e
hex#3d0a2e
rgbrgb(61, 10, 46)
hslhsl(318, 72%, 14%)
oklchoklch(0.253 0.09 342.3)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0141

Colors that go with #3d0a2e

Charcoal, Crimson and Sea Green 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 →

#0a3d19

#330a3d · #3d0a14

#2e3d0a · #0a2e3d

Split-complementary

Open in tool →

#143d0a · #0a3d33

#3d330a · #0a3d19 · #0a143d

Contrast

#3d0a2e as textRatioAAAA largeAAAFix
Aaon white
16.39:1passpasspassPasses AAA — no fix needed.
Aaon black
1.28:1failfailfail
  • AA: use #d723a1 as the text (4.64:1)
  • AAA: use #e76ac1 as the text (7.23:1)
  • AA: or shift the background to #878787 (4.56:1)
  • AAA: or shift the background to #ababab (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 #3d0a2e 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

#3d0a2e reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d0a2e
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 #3d0a2e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d0a2e-c19fb3-75cb62-2d1f23-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