Color

#6312ba

#6312ba
hex#6312ba
rgbrgb(99, 18, 186)
hslhsl(269, 82%, 40%)
oklchoklch(0.434 0.225 296.5)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0663

Colors that go with #6312ba

Olive Green, Charcoal and Denim 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 →

#69ba12

#1215ba · #b712ba

#ba6312 · #12ba63

Split-complementary

Open in tool →

#bab712 · #15ba12

#ba1215 · #69ba12 · #12bab7

Contrast

#6312ba as textRatioAAAA largeAAAFix
Aaon white
9.03:1passpasspassPasses AAA — no fix needed.
Aaon black
2.33:1failfailfail
  • AA: use #994aed as the text (4.56:1)
  • AAA: use #b67df2 as the text (7.2:1)
  • AA: or shift the background to #b8b8b8 (4.55:1)
  • AAA: or shift the background to #e3e3e3 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6312ba as the background.

Brands using this color

Fonts for this mood

#6312ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6312ba
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 #6312ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6312ba-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