Color

#1e4bae

#1e4bae
hex#1e4bae
rgbrgb(30, 75, 174)
hslhsl(221, 71%, 40%)
oklchoklch(0.445 0.166 263)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0836

Colors that go with #1e4bae

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 →

#ae811e

#1e94ae · #381eae

#ae1e4b · #4bae1e

Split-complementary

Open in tool →

#ae381e · #94ae1e

#ae1e94 · #ae811e · #1eae38

Contrast

#1e4bae as textRatioAAAA largeAAAFix
Aaon white
7.86:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #3f72de as the text (4.67:1)
  • AAA: use #6f95e7 as the text (7.13:1)
  • AA: or shift the background to #c4c4c4 (4.5:1)
  • 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 #1e4bae as the background.

Brands using this color

Fonts for this mood

#1e4bae reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e4bae
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 #1e4bae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e4bae-9ca4c4-df6b4e-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