Color

#901009

#901009
hex#901009
rgbrgb(144, 16, 9)
hslhsl(3, 88%, 30%)
oklchoklch(0.418 0.161 29.4)
Closest name: Brick Red (#8f1402)Relative luminance 0.0632

Colors that go with #901009

Teal, Crimson and Taupe lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#098990

#900946 · #905309

#099010 · #100990

Split-complementary

Open in tool →

#099053 · #094690

#469009 · #098990 · #530990

Contrast

#901009 as textRatioAAAA largeAAAFix
Aaon white
9.28:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #e6190f as the text (4.51:1)
  • AAA: use #f56861 as the text (7.04:1)
  • AA: or shift the background to #b5b5b5 (4.52:1)
  • AAA: or shift the background to #e0e0e0 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #901009 as the background.

Brands using this color

Fonts for this mood

#901009 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #901009
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #901009 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/901009-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