Color

#400c2f

#400c2f
hex#400c2f
rgbrgb(64, 12, 47)
hslhsl(320, 68%, 15%)
oklchoklch(0.262 0.09 343.9)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0156

Colors that go with #400c2f

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 →

#0c401e

#380c40 · #400c15

#2f400c · #0c2f40

Split-complementary

Open in tool →

#15400c · #0c4038

#40380c · #0c401e · #0c1540

Contrast

#400c2f as textRatioAAAA largeAAAFix
Aaon white
16.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #d22899 as the text (4.5:1)
  • AAA: use #e36dbc as the text (7.18:1)
  • AA: or shift the background to #8a8a8a (4.64:1)
  • 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 #400c2f 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

#400c2f reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #400c2f
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 #400c2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/400c2f-c19fb2-72cb62-2d1f23-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