Color

#91081d

#91081d
hex#91081d
rgbrgb(145, 8, 29)
hslhsl(351, 90%, 30%)
oklchoklch(0.418 0.164 22.9)
Closest name: Barbera (#8b031c)Relative luminance 0.0628

Tints & shades

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

Harmonies

Complementary

Open in tool →

#08917d

#910861 · #913808

#1c9108 · #081c91

Split-complementary

Open in tool →

#089138 · #086191

#619108 · #08917d · #380891

Contrast

#91081d as textRatioAAAA largeAAAFix
Aaon white
9.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #e90c2d as the text (4.56:1)
  • AAA: use #f7647a as the text (7.06:1)
  • AA: or shift the background to #b5b5b5 (4.54:1)
  • AAA: or shift the background to #e0e0e0 (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 #91081d 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

#91081d reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #91081d
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 #91081d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/91081d-c49c9e-62cb89-2d231f-f1e9ee?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