Color

#a01a18

#a01a18
hex#a01a18
rgbrgb(160, 26, 24)
hslhsl(1, 74%, 36%)
oklchoklch(0.456 0.169 27.7)
Closest name: Bleeding Crimson (#9b1414)Relative luminance 0.0828

Colors that go with #a01a18

Royal Blue, Teal and Champagne 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 →

#189da0

#a0185a · #a05e18

#18a01a · #1a18a0

Split-complementary

Open in tool →

#18a05e · #185aa0

#5aa018 · #189da0 · #5e18a0

Contrast

#a01a18 as textRatioAAAA largeAAAFix
Aaon white
7.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.66:1failfailfail
  • AA: use #df2d2a as the text (4.55:1)
  • AAA: use #ea7371 as the text (7.19:1)
  • AA: or shift the background to #c4c4c4 (4.53:1)
  • AAA: or shift the background to #f2f2f2 (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 #a01a18 as the background.

Brands using this color

Fonts for this mood

#a01a18 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a01a18
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 #a01a18 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a01a18-c4a19c-62cb9a-2d261f-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