Color

#51153b

#51153b
hex#51153b
rgbrgb(81, 21, 59)
hslhsl(322, 59%, 20%)
oklchoklch(0.31 0.1 345.6)
Closest name: Blackberry (#43182f)Relative luminance 0.026

Tints & shades

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

Harmonies

Complementary

Open in tool →

#15512b

#491551 · #51151d

#3b5115 · #153b51

Split-complementary

Open in tool →

#1d5115 · #155149

#514915 · #15512b · #151d51

Contrast

#51153b as textRatioAAAA largeAAAFix
Aaon white
13.81:1passpasspassPasses AAA — no fix needed.
Aaon black
1.52:1failfailfail
  • AA: use #cc3896 as the text (4.57:1)
  • AAA: use #da71b4 as the text (7:1)
  • AA: or shift the background to #949494 (4.55:1)
  • AAA: or shift the background to #bababa (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #51153b 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

#51153b reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #51153b
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 #51153b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51153b-c19fb1-6ecb62-2d1f22-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