Color

#a3230f

#a3230f
hex#a3230f
rgbrgb(163, 35, 15)
hslhsl(8, 83%, 35%)
oklchoklch(0.468 0.167 31.7)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0902

Colors that go with #a3230f

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 →

#0f90a3

#a30f45 · #a36d0f

#0fa323 · #230fa3

Split-complementary

Open in tool →

#0fa36d · #0f45a3

#45a30f · #0f90a3 · #6d0fa3

Contrast

#a3230f as textRatioAAAA largeAAAFix
Aaon white
7.49:1passpasspassPasses AAA — no fix needed.
Aaon black
2.8:1failfailfail
  • AA: use #e03015 as the text (4.6:1)
  • AAA: use #f06f5c as the text (7.13:1)
  • AA: or shift the background to #c9c9c9 (4.52:1)
  • AAA: or shift the background to #fafafa (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a3230f as the background.

Brands using this color

Fonts for this mood

#a3230f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a3230f
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 #a3230f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a3230f-c4a69c-62cba6-2d271f-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