Color

#134faa

#134faa
hex#134faa
rgbrgb(19, 79, 170)
hslhsl(216, 80%, 37%)
oklchoklch(0.448 0.158 259.4)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0863

Colors that go with #134faa

Charcoal, Crimson and Steel 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 →

#aa6d13

#139baa · #2213aa

#aa134f · #4faa13

Split-complementary

Open in tool →

#aa2213 · #9baa13

#aa139b · #aa6d13 · #13aa22

Contrast

#134faa as textRatioAAAA largeAAAFix
Aaon white
7.7:1passpasspassPasses AAA — no fix needed.
Aaon black
2.73:1failfailfail
  • AA: use #2371e7 as the text (4.59:1)
  • AAA: use #5e97ed as the text (7.13:1)
  • AA: or shift the background to #c7c7c7 (4.56:1)
  • AAA: or shift the background to #f5f5f5 (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 #134faa as the background.

Brands using this color

Fonts for this mood

#134faa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #134faa
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 #134faa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/134faa-9ca7c4-df5f4e-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