Color

#aa2a03

#aa2a03
hex#aa2a03
rgbrgb(170, 42, 3)
hslhsl(14, 97%, 34%)
oklchoklch(0.487 0.17 34.8)
Closest name: Blood Rush (#aa2222)Relative luminance 0.1021

Colors that go with #aa2a03

Royal Blue, Teal and Crimson 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 →

#0384ab

#ab032f · #ab7e03

#03ab2a · #2a03ab

Split-complementary

Open in tool →

#03ab7e · #032fab

#2fab03 · #0384ab · #7e03ab

Contrast

#aa2a03 as textRatioAAAA largeAAAFix
Aaon white
6.9:1passpassfail
  • AAA: use #a62903 as the text (7.14:1)
Aaon black
3.04:1failpassfail
  • AA: use #dd3603 as the text (4.6:1)
  • AAA: use #fc6436 as the text (7.02:1)
  • AA: or shift the background to #d1d1d1 (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 #aa2a03 as the background.

Brands using this color

Fonts for this mood

#aa2a03 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #aa2a03
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 #aa2a03 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/aa2a03-c4aa9c-62cbb1-2d291f-f1e9eb?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