Color

#2a0551

#2a0551
hex#2a0551
rgbrgb(42, 5, 81)
hslhsl(269, 88%, 17%)
oklchoklch(0.245 0.122 298.3)
Closest name: Hollow Knight (#330055)Relative luminance 0.0119

Colors that go with #2a0551

Charcoal, Royal Blue and Teal 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 →

#2d5105

#050651 · #500551

#512a05 · #05512a

Split-complementary

Open in tool →

#515005 · #065105

#510506 · #2d5105 · #055150

Contrast

#2a0551 as textRatioAAAA largeAAAFix
Aaon white
16.95:1passpasspassPasses AAA — no fix needed.
Aaon black
1.24:1failfailfail
  • AA: use #9b49f3 as the text (4.64:1)
  • AAA: use #b679f6 as the text (7.05:1)
  • AA: or shift the background to #858585 (4.59:1)
  • AAA: or shift the background to #a8a8a8 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a0551 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

#2a0551 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a0551
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 #2a0551 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a0551-b49cc4-cbcb62-2c1f2d-e9e9f1?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