Color

#aa3133

#aa3133
hex#aa3133
rgbrgb(170, 49, 51)
hslhsl(359, 55%, 43%)
oklchoklch(0.498 0.157 24.1)
Closest name: brown (#a52a2a)Relative luminance 0.1098

Colors that go with #aa3133

Royal Blue, Teal and Dark Olive Green 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.

Real palettes that use #aa3133

Tints & shades

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

Harmonies

Complementary

Open in tool →

#31aaa8

#aa3170 · #aa6c31

#33aa31 · #3133aa

Split-complementary

Open in tool →

#31aa6c · #3170aa

#70aa31 · #31aaa8 · #6c31aa

Contrast

#aa3133 as textRatioAAAA largeAAAFix
Aaon white
6.57:1passpassfail
  • AAA: use #a22f31 as the text (7.03:1)
Aaon black
3.2:1failpassfail
  • AA: use #ca494b as the text (4.57:1)
  • AAA: use #d97d7e as the text (7.19:1)
  • AA: or shift the background to #d6d6d6 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #aa3133 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

#aa3133 reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #aa3133
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 #aa3133 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/aa3133-c4a09c-62cb96-2d251f-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