Color

#1748ba

#1748ba
hex#1748ba
rgbrgb(23, 72, 186)
hslhsl(222, 78%, 41%)
oklchoklch(0.448 0.187 263.2)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0836

Colors that go with #1748ba

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 →

#ba8917

#1799ba · #3817ba

#ba1748 · #48ba17

Split-complementary

Open in tool →

#ba3817 · #99ba17

#ba1799 · #ba8917 · #17ba38

Contrast

#1748ba as textRatioAAAA largeAAAFix
Aaon white
7.86:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #3c6fe7 as the text (4.62:1)
  • AAA: use #6e94ed as the text (7.12:1)
  • AA: or shift the background to #c4c4c4 (4.51:1)
  • AAA: or shift the background to #f2f2f2 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1748ba as the background.

Brands using this color

Fonts for this mood

#1748ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1748ba
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 #1748ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1748ba-9ca3c4-df6e4e-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