Color

#3d150a

#3d150a
hex#3d150a
rgbrgb(61, 21, 10)
hslhsl(13, 72%, 14%)
oklchoklch(0.256 0.066 36.2)
Closest name: Black Chocolate (#441100)Relative luminance 0.0155

Colors that go with #3d150a

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 →

#0a323d

#3d0a19 · #3d2f0a

#0a3d15 · #150a3d

Split-complementary

Open in tool →

#0a3d2f · #0a193d

#193d0a · #0a323d · #2f0a3d

Contrast

#3d150a as textRatioAAAA largeAAAFix
Aaon white
16.03:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #ce4722 as the text (4.55:1)
  • AAA: use #e47758 as the text (7.08:1)
  • AA: or shift the background to #8a8a8a (4.64:1)
  • AAA: or shift the background to #adadad (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 #3d150a as the background.

Brands using this color

Fonts for this mood

#3d150a reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d150a
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 #3d150a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d150a-c4a99c-62cbaf-2d281f-f1e9eb?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