Color

#a20101

#a20101
hex#a20101
rgbrgb(162, 1, 1)
hslhsl(0, 99%, 32%)
oklchoklch(0.448 0.183 29.2)
Closest name: Bleeding Crimson (#9b1414)Relative luminance 0.0771

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#01a2a2

#a20152 · #a25201

#01a201 · #0101a2

Split-complementary

Open in tool →

#01a252 · #0152a2

#52a201 · #01a2a2 · #5201a2

Contrast

#a20101 as textRatioAAAA largeAAAFix
Aaon white
8.26:1passpasspassPasses AAA — no fix needed.
Aaon black
2.54:1failfailfail
  • AA: use #ef0101 as the text (4.67:1)
  • AAA: use #fe6262 as the text (7.14:1)
  • AA: or shift the background to #c2c2c2 (4.64:1)
  • AAA: or shift the background to #ededed (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 #a20101 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#a20101 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a20101
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #a20101 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a20101-c4a19c-62cb98-2d251f-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