Color

#a305ff

#a305ff
hex#a305ff
rgbrgb(163, 5, 255)
hslhsl(278, 100%, 51%)
oklchoklch(0.573 0.296 304.9)
Closest name: Cosmic Heart (#9601f4)Relative luminance 0.1512

Colors that go with #a305ff

Olive Drab, Sea Green and Olive Green 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.

Real palettes that use #a305ff

Tints & shades

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

Harmonies

Complementary

Open in tool →

#61ff05

#2605ff · #ff05de

#ffa305 · #05ffa3

Split-complementary

Open in tool →

#deff05 · #05ff26

#ff2605 · #61ff05 · #05deff

Contrast

#a305ff as textRatioAAAA largeAAAFix
Aaon white
5.22:1passpassfail
  • AAA: use #8400d1 as the text (7.24:1)
Aaon black
4.02:1failpassfail
  • AA: use #af24ff as the text (4.52:1)
  • AAA: use #c96bff as the text (7.03:1)
  • AA: or shift the background to #f0f0f0 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a305ff 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

#a305ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a305ff
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 #a305ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a305ff-ba9cc4-bbcb62-2d1f2c-ebe9f1?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