Color

#40150c

#40150c
hex#40150c
rgbrgb(64, 21, 12)
hslhsl(10, 68%, 15%)
oklchoklch(0.262 0.07 33.5)
Closest name: English Breakfast (#441111)Relative luminance 0.0165

Colors that go with #40150c

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 →

#0c3840

#400c1e · #402f0c

#0c4015 · #150c40

Split-complementary

Open in tool →

#0c402f · #0c1e40

#1e400c · #0c3840 · #2f0c40

Contrast

#40150c as textRatioAAAA largeAAAFix
Aaon white
15.78:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #d24428 as the text (4.6:1)
  • AAA: use #e27a65 as the text (7.21:1)
  • AA: or shift the background to #8a8a8a (4.57:1)
  • AAA: or shift the background to #adadad (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40150c as the background.

Brands using this color

Fonts for this mood

#40150c reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40150c
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 #40150c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40150c-c4a79c-62cbaa-2d281f-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