Color

#51101f

#51101f
hex#51101f
rgbrgb(81, 16, 31)
hslhsl(346, 67%, 19%)
oklchoklch(0.293 0.095 12.1)
Closest name: What We Do in the Shadows (#441122)Relative luminance 0.0222

Tints & shades

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

Harmonies

Complementary

Open in tool →

#105142

#511040 · #512110

#1f5110 · #101f51

Split-complementary

Open in tool →

#105121 · #104051

#405110 · #105142 · #211051

Contrast

#51101f as textRatioAAAA largeAAAFix
Aaon white
14.55:1passpasspassPasses AAA — no fix needed.
Aaon black
1.44:1failfailfail
  • AA: use #d73359 as the text (4.51:1)
  • AAA: use #e3728d as the text (7.06:1)
  • AA: or shift the background to #919191 (4.61:1)
  • AAA: or shift the background to #b5b5b5 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #51101f 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

#51101f reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #51101f
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 #51101f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51101f-c49ca1-62cb80-2d221f-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