Color

#a10205

#a10205
hex#a10205
rgbrgb(161, 2, 5)
hslhsl(359, 98%, 32%)
oklchoklch(0.446 0.182 28.6)
Closest name: Bleeding Crimson (#9b1414)Relative luminance 0.0763

Colors that go with #a10205

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 →

#02a29f

#a20254 · #a24f02

#04a202 · #0204a2

Split-complementary

Open in tool →

#02a24f · #0254a2

#54a202 · #02a29f · #4f02a2

Contrast

#a10205 as textRatioAAAA largeAAAFix
Aaon white
8.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.53:1failfailfail
  • AA: use #ed0206 as the text (4.61:1)
  • AAA: use #fd6265 as the text (7.11:1)
  • AA: or shift the background to #bfbfbf (4.52:1)
  • AAA: or shift the background to #ededed (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a10205 as the background.

Brands using this color

Fonts for this mood

#a10205 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a10205
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 #a10205 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a10205-c4a09c-62cb96-2d251f-f1e9ed?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