Color

#431d4e

#431d4e
hex#431d4e
rgbrgb(67, 29, 78)
hslhsl(287, 46%, 21%)
oklchoklch(0.309 0.094 318.1)
Closest name: Velvet Cosmos (#441144)Relative luminance 0.0262

Tints & shades

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

Harmonies

Complementary

Open in tool →

#284e1d

#2b1d4e · #4e1d40

#4e441d · #1d4e44

Split-complementary

Open in tool →

#404e1d · #1d4e2b

#4e2b1d · #284e1d · #1d404e

Contrast

#431d4e as textRatioAAAA largeAAAFix
Aaon white
13.78:1passpasspassPasses AAA — no fix needed.
Aaon black
1.52:1failfailfail
  • AA: use #a650be as the text (4.51:1)
  • AAA: use #bf80d0 as the text (7.21:1)
  • AA: or shift the background to #949494 (4.54:1)
  • AAA: or shift the background to #bababa (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #431d4e 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

#431d4e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #431d4e
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 #431d4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/431d4e-bd9fc1-abcb62-2d1f2a-ece9f1?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