Color

#85100a

#85100a
hex#85100a
rgbrgb(133, 16, 10)
hslhsl(3, 86%, 28%)
oklchoklch(0.396 0.151 29.2)
Closest name: darkred (#8b0000)Relative luminance 0.0538

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0a7f85

#850a41 · #854e0a

#0a8510 · #100a85

Split-complementary

Open in tool →

#0a854e · #0a4185

#41850a · #0a7f85 · #4e0a85

Contrast

#85100a as textRatioAAAA largeAAAFix
Aaon white
10.12:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #e81c11 as the text (4.61:1)
  • AAA: use #f36a62 as the text (7.05:1)
  • AA: or shift the background to #adadad (4.51:1)
  • AAA: or shift the background to #d9d9d9 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #85100a 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

#85100a reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #85100a
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 #85100a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/85100a-c4a39c-62cb9d-2d261f-f1e9ed?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