Color

#1a4ccb

#1a4ccb
hex#1a4ccb
rgbrgb(26, 76, 203)
hslhsl(223, 77%, 45%)
oklchoklch(0.472 0.204 263.8)
Closest name: Denim (#1560bd)Relative luminance 0.097

Colors that go with #1a4ccb

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 →

#cb991a

#1aa5cb · #411acb

#cb1a4c · #4ccb1a

Split-complementary

Open in tool →

#cb411a · #a5cb1a

#cb1aa5 · #cb991a · #1acb41

Contrast

#1a4ccb as textRatioAAAA largeAAAFix
Aaon white
7.14:1passpasspassPasses AAA — no fix needed.
Aaon black
2.94:1failfailfail
  • AA: use #3d6de6 as the text (4.53:1)
  • AAA: use #7396ed as the text (7.31:1)
  • AA: or shift the background to #cfcfcf (4.58:1)
  • AAA: or shift the background to #ffffff (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1a4ccb as the background.

Brands using this color

Fonts for this mood

#1a4ccb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1a4ccb
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 #1a4ccb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1a4ccb-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