Color

#345ea2

#345ea2
hex#345ea2
rgbrgb(52, 94, 162)
hslhsl(217, 51%, 42%)
oklchoklch(0.487 0.119 259.6)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1134

Colors that go with #345ea2

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 →

#a27834

#3495a2 · #4134a2

#a2345e · #5ea234

Split-complementary

Open in tool →

#a24134 · #95a234

#a23495 · #a27834 · #34a241

Contrast

#345ea2 as textRatioAAAA largeAAAFix
Aaon white
6.42:1passpassfail
  • AAA: use #315896 as the text (7.08:1)
Aaon black
3.27:1failpassfail
  • AA: use #4676c3 as the text (4.64:1)
  • AAA: use #7498d2 as the text (7.16:1)
  • AA: or shift the background to #d9d9d9 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #345ea2 as the background.

Brands using this color

Fonts for this mood

#345ea2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #345ea2
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 #345ea2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/345ea2-9ca7c4-df624e-201f2d-e9f0f1?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