Color

#321ab7

#321ab7
hex#321ab7
rgbrgb(50, 26, 183)
hslhsl(249, 75%, 41%)
oklchoklch(0.39 0.222 275.6)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0484

Colors that go with #321ab7

Charcoal, Steel Blue and Cornflower Blue 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 →

#9fb71a

#1a51b7 · #801ab7

#b7321a · #1ab732

Split-complementary

Open in tool →

#b7801a · #51b71a

#b71a51 · #9fb71a · #1ab780

Contrast

#321ab7 as textRatioAAAA largeAAAFix
Aaon white
10.68:1passpasspassPasses AAA — no fix needed.
Aaon black
1.97:1failfailfail
  • AA: use #7763e9 as the text (4.75:1)
  • AAA: use #9a8bee as the text (7.3:1)
  • AA: or shift the background to #ababab (4.65:1)
  • AAA: or shift the background to #d4d4d4 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #321ab7 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

#321ab7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #321ab7
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 #321ab7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/321ab7-a79cc4-dfae4e-271f2d-e9ecf1?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