Color

#054aa3

#054aa3
hex#054aa3
rgbrgb(5, 74, 163)
hslhsl(214, 94%, 33%)
oklchoklch(0.429 0.157 258.4)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0757

Colors that go with #054aa3

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 →

#a35f05

#0599a3 · #1005a3

#a3054a · #4aa305

Split-complementary

Open in tool →

#a31005 · #99a305

#a30599 · #a35f05 · #05a310

Contrast

#054aa3 as textRatioAAAA largeAAAFix
Aaon white
8.35:1passpasspassPasses AAA — no fix needed.
Aaon black
2.51:1failfailfail
  • AA: use #0870f7 as the text (4.67:1)
  • AAA: use #4d98f9 as the text (7.17:1)
  • AA: or shift the background to #bfbfbf (4.54:1)
  • AAA: or shift the background to #ebebeb (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #054aa3 as the background.

Brands using this color

Fonts for this mood

#054aa3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #054aa3
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 #054aa3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/054aa3-9ca9c4-df5a4e-1f1f2d-e9f0f1?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