Color

#401720

#401720
hex#401720
rgbrgb(64, 23, 32)
hslhsl(347, 47%, 17%)
oklchoklch(0.271 0.065 8.8)
Closest name: Black-Hearted (#3e1825)Relative luminance 0.0181

Tints & shades

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

Harmonies

Complementary

Open in tool →

#174037

#401734 · #402317

#204017 · #172040

Split-complementary

Open in tool →

#174023 · #173440

#344017 · #174037 · #231740

Contrast

#401720 as textRatioAAAA largeAAAFix
Aaon white
15.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.36:1failfailfail
  • AA: use #bf4f67 as the text (4.53:1)
  • AAA: use #d18091 as the text (7.21:1)
  • AA: or shift the background to #8c8c8c (4.59:1)
  • AAA: or shift the background to #b0b0b0 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #401720 as the background.

Brands using this color

Fonts for this mood

#401720 reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #401720
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 #401720 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/401720-c49ca0-62cb82-2d221f-f1e9ef?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