Color

#511f1a

#511f1a
hex#511f1a
rgbrgb(81, 31, 26)
hslhsl(5, 51%, 21%)
oklchoklch(0.313 0.076 28)
Closest name: Chocolate Rush (#4e1b0b)Relative luminance 0.028

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1a4c51

#511a31 · #513a1a

#1a511f · #1f1a51

Split-complementary

Open in tool →

#1a513a · #1a3151

#31511a · #1a4c51 · #3a1a51

Contrast

#511f1a as textRatioAAAA largeAAAFix
Aaon white
13.45:1passpasspassPasses AAA — no fix needed.
Aaon black
1.56:1failfailfail
  • AA: use #c35146 as the text (4.59:1)
  • AAA: use #d38078 as the text (7.13:1)
  • AA: or shift the background to #969696 (4.55:1)
  • AAA: or shift the background to #bdbdbd (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #511f1a 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

#511f1a reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #511f1a
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 #511f1a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/511f1a-c4a49c-62cba1-2d261f-f1e9ec?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