Color

#510b22

#510b22
hex#510b22
rgbrgb(81, 11, 34)
hslhsl(340, 76%, 18%)
oklchoklch(0.289 0.101 7.4)
Closest name: What We Do in the Shadows (#441122)Relative luminance 0.021

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0b513a

#510b45 · #51170b

#22510b · #0b2251

Split-complementary

Open in tool →

#0b5117 · #0b4551

#45510b · #0b513a · #170b51

Contrast

#510b22 as textRatioAAAA largeAAAFix
Aaon white
14.78:1passpasspassPasses AAA — no fix needed.
Aaon black
1.42:1failfailfail
  • AA: use #e01f5f as the text (4.53:1)
  • AAA: use #eb6b96 as the text (7.08:1)
  • AA: or shift the background to #8f8f8f (4.57:1)
  • AAA: or shift the background to #b3b3b3 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #510b22 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

#510b22 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #510b22
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 #510b22 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/510b22-c49ca5-62cb75-2d211f-f1e9f0?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