Color

#aa2503

#aa2503
hex#aa2503
rgbrgb(170, 37, 3)
hslhsl(12, 97%, 34%)
oklchoklch(0.482 0.173 33.6)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0988

Colors that go with #aa2503

Royal Blue, Teal and Amber 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 →

#0389ab

#ab0335 · #ab7803

#03ab24 · #2403ab

Split-complementary

Open in tool →

#03ab78 · #0335ab

#35ab03 · #0389ab · #7803ab

Contrast

#aa2503 as textRatioAAAA largeAAAFix
Aaon white
7.06:1passpasspassPasses AAA — no fix needed.
Aaon black
2.98:1failfailfail
  • AA: use #e23003 as the text (4.66:1)
  • AAA: use #fc6640 as the text (7.11:1)
  • AA: or shift the background to #cfcfcf (4.53:1)
  • AAA: or shift the background to #ffffff (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #aa2503 as the background.

Brands using this color

Fonts for this mood

#aa2503 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #aa2503
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 #aa2503 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/aa2503-c4a99c-62cbad-2d281f-f1e9ec?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