Color

#3d151f

#3d151f
hex#3d151f
rgbrgb(61, 21, 31)
hslhsl(345, 49%, 16%)
oklchoklch(0.262 0.064 7)
Closest name: Chocolate Kiss (#3c1421)Relative luminance 0.0163

Colors that go with #3d151f

Charcoal, Dark Olive Green 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 →

#153d33

#3d1533 · #3d1f15

#1f3d15 · #151f3d

Split-complementary

Open in tool →

#153d1f · #15333d

#333d15 · #153d33 · #1f153d

Contrast

#3d151f as textRatioAAAA largeAAAFix
Aaon white
15.84:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #c24c6a as the text (4.54:1)
  • AAA: use #d37e93 as the text (7.18:1)
  • AA: or shift the background to #8a8a8a (4.59:1)
  • AAA: or shift the background to #adadad (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d151f 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

#3d151f reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d151f
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 #3d151f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d151f-c49ca1-62cb7e-2d221f-f1e9ef?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