Color

#315afc

#315afc
hex#315afc
rgbrgb(49, 90, 252)
hslhsl(228, 97%, 59%)
oklchoklch(0.548 0.244 266.6)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1499

Colors that go with #315afc

Charcoal, Crimson and Amber 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 →

#fcd331

#31bffc · #6e31fc

#fc315a · #5afc31

Split-complementary

Open in tool →

#fc6e31 · #bffc31

#fc31bf · #fcd331 · #31fc6e

Contrast

#315afc as textRatioAAAA largeAAAFix
Aaon white
5.25:1passpassfail
  • AAA: use #0939fb as the text (7.02:1)
Aaon black
4:1failpassfail
  • AA: use #4066fc as the text (4.52:1)
  • AAA: use #728efd as the text (7:1)
  • AA: or shift the background to #f0f0f0 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #315afc as the background.

Brands using this color

Fonts for this mood

#315afc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #315afc
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 #315afc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/315afc-9c9fc4-df7c4e-231f2d-e9eff1?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