Color

#1745ba

#1745ba
hex#1745ba
rgbrgb(23, 69, 186)
hslhsl(223, 78%, 41%)
oklchoklch(0.442 0.191 263.8)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0798

Colors that go with #1745ba

Charcoal, Steel Blue 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 →

#ba8c17

#1797ba · #3a17ba

#ba1745 · #45ba17

Split-complementary

Open in tool →

#ba3a17 · #97ba17

#ba1797 · #ba8c17 · #17ba3a

Contrast

#1745ba as textRatioAAAA largeAAAFix
Aaon white
8.09:1passpasspassPasses AAA — no fix needed.
Aaon black
2.6:1failfailfail
  • AA: use #4070e7 as the text (4.69:1)
  • AAA: use #7295ee as the text (7.25:1)
  • AA: or shift the background to #c2c2c2 (4.54:1)
  • AAA: or shift the background to #f0f0f0 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1745ba as the background.

Brands using this color

Fonts for this mood

#1745ba reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1745ba
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 #1745ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1745ba-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