Color

#3164d3

#3164d3
hex#3164d3
rgbrgb(49, 100, 211)
hslhsl(221, 65%, 51%)
oklchoklch(0.533 0.18 263.1)
Closest name: God of Rain (#4466cc)Relative luminance 0.1447

Colors that go with #3164d3

Charcoal, Sea Green 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 →

#d3a031

#31b5d3 · #4f31d3

#d33164 · #64d331

Split-complementary

Open in tool →

#d34f31 · #b5d331

#d331b5 · #d3a031 · #31d34f

Contrast

#3164d3 as textRatioAAAA largeAAAFix
Aaon white
5.39:1passpassfail
  • AAA: use #2552b1 as the text (7.19:1)
Aaon black
3.89:1failpassfail
  • AA: use #4271d7 as the text (4.57:1)
  • AAA: use #7094e1 as the text (7.01:1)
  • AA: or shift the background to #ebebeb (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3164d3 as the background.

Brands using this color

Fonts for this mood

#3164d3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3164d3
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 #3164d3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3164d3-9ca4c4-df6b4e-211f2d-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