Color

#a02303

#a02303
hex#a02303
rgbrgb(160, 35, 3)
hslhsl(12, 96%, 32%)
oklchoklch(0.462 0.165 33.7)
Closest name: Antique Port Wine (#98211a)Relative luminance 0.0868

Colors that go with #a02303

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 →

#0381a0

#a00332 · #a07103

#03a023 · #2303a0

Split-complementary

Open in tool →

#03a071 · #0332a0

#32a003 · #0381a0 · #7103a0

Contrast

#a02303 as textRatioAAAA largeAAAFix
Aaon white
7.67:1passpasspassPasses AAA — no fix needed.
Aaon black
2.74:1failfailfail
  • AA: use #e13105 as the text (4.64:1)
  • AAA: use #fb6641 as the text (7.08:1)
  • AA: or shift the background to #c7c7c7 (4.54:1)
  • AAA: or shift the background to #f5f5f5 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a02303 as the background.

Brands using this color

Fonts for this mood

#a02303 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a02303
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 #a02303 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a02303-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