Color

#400334

#400334
hex#400334
rgbrgb(64, 3, 52)
hslhsl(312, 91%, 13%)
oklchoklch(0.255 0.106 338.1)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.014

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#033f0f

#2d033f · #3f0315

#333f03 · #03333f

Split-complementary

Open in tool →

#153f03 · #033f2d

#3f2d03 · #033f0f · #03153f

Contrast

#400334 as textRatioAAAA largeAAAFix
Aaon white
16.4:1passpasspassPasses AAA — no fix needed.
Aaon black
1.28:1failfailfail
  • AA: use #d60aad as the text (4.51:1)
  • AAA: use #f750d5 as the text (7.06:1)
  • AA: or shift the background to #878787 (4.56:1)
  • AAA: or shift the background to #ababab (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 #400334 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

#400334 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #400334
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #400334 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/400334-c19fb6-80cb62-2d1f24-efe9f1?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