Color

#3512fd

#3512fd
hex#3512fd
rgbrgb(53, 18, 253)
hslhsl(249, 98%, 53%)
oklchoklch(0.471 0.297 271.1)
Closest name: Overdue Blue (#4400ff)Relative luminance 0.0828

Colors that go with #3512fd

Charcoal, Cobalt 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 →

#d9fd12

#1264fd · #aa12fd

#fd3512 · #12fd35

Split-complementary

Open in tool →

#fdaa12 · #64fd12

#fd1264 · #d9fd12 · #12fdaa

Contrast

#3512fd as textRatioAAAA largeAAAFix
Aaon white
7.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.66:1failfailfail
  • AA: use #7158fd as the text (4.52:1)
  • AAA: use #9886fe as the text (7.18:1)
  • AA: or shift the background to #c4c4c4 (4.53:1)
  • AAA: or shift the background to #f2f2f2 (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 #3512fd as the background.

Brands using this color

Fonts for this mood

#3512fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3512fd
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 #3512fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3512fd-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