Color

#a30512

#a30512
hex#a30512
rgbrgb(163, 5, 18)
hslhsl(355, 94%, 33%)
oklchoklch(0.452 0.181 26.7)
Closest name: Bleeding Crimson (#9b1414)Relative luminance 0.0794

Colors that go with #a30512

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 →

#05a396

#a30561 · #a34705

#12a305 · #0512a3

Split-complementary

Open in tool →

#05a347 · #0561a3

#61a305 · #05a396 · #4705a3

Contrast

#a30512 as textRatioAAAA largeAAAFix
Aaon white
8.12:1passpasspassPasses AAA — no fix needed.
Aaon black
2.59:1failfailfail
  • AA: use #e9071a as the text (4.51:1)
  • AAA: use #fa6672 as the text (7.21:1)
  • AA: or shift the background to #c2c2c2 (4.56:1)
  • AAA: or shift the background to #f0f0f0 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a30512 as the background.

Brands using this color

Fonts for this mood

#a30512 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a30512
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 #a30512 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a30512-c49e9c-62cb8f-2d241f-f1e9ee?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