Color

#1343be

#1343be
hex#1343be
rgbrgb(19, 67, 190)
hslhsl(223, 82%, 41%)
oklchoklch(0.441 0.199 263.7)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0787

Colors that go with #1343be

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 →

#be8e13

#1399be · #3813be

#be1343 · #43be13

Split-complementary

Open in tool →

#be3813 · #99be13

#be1399 · #be8e13 · #13be38

Contrast

#1343be as textRatioAAAA largeAAAFix
Aaon white
8.16:1passpasspassPasses AAA — no fix needed.
Aaon black
2.57:1failfailfail
  • AA: use #3c6eec as the text (4.63:1)
  • AAA: use #6f94f1 as the text (7.18:1)
  • AA: or shift the background to #c2c2c2 (4.58:1)
  • AAA: or shift the background to #f0f0f0 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1343be as the background.

Brands using this color

Fonts for this mood

#1343be reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1343be
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 #1343be and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1343be-9ca3c4-df704e-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