Color

#3d150f

#3d150f
hex#3d150f
rgbrgb(61, 21, 15)
hslhsl(8, 61%, 15%)
oklchoklch(0.257 0.065 30.6)
Closest name: English Breakfast (#441111)Relative luminance 0.0156

Colors that go with #3d150f

Charcoal, Royal Blue 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 →

#0f373e

#3e0f20 · #3e2c0f

#0f3e15 · #150f3e

Split-complementary

Open in tool →

#0f3e2c · #0f203e

#203e0f · #0f373e · #2c0f3e

Contrast

#3d150f as textRatioAAAA largeAAAFix
Aaon white
16:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #cd4632 as the text (4.52:1)
  • AAA: use #db7a6b as the text (7.01:1)
  • AA: or shift the background to #8a8a8a (4.63:1)
  • AAA: or shift the background to #adadad (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d150f as the background.

Brands using this color

Fonts for this mood

#3d150f reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d150f
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 #3d150f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d150f-c4a69c-62cba6-2d271f-f1e9ec?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