Color

#054166

#054166
hex#054166
rgbrgb(5, 65, 102)
hslhsl(203, 91%, 21%)
oklchoklch(0.361 0.085 243.4)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0477

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#662a05

#05665b · #051066

#660541 · #416605

Split-complementary

Open in tool →

#660510 · #665b05

#5b0566 · #662a05 · #106605

Contrast

#054166 as textRatioAAAA largeAAAFix
Aaon white
10.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #097cc3 as the text (4.68:1)
  • AAA: use #0b9bf4 as the text (7.01:1)
  • AA: or shift the background to #a8a8a8 (4.52:1)
  • AAA: or shift the background to #d1d1d1 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #054166 as the background.

Brands using this color

Fonts for this mood

#054166 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #054166
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #054166 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/054166-9cb0c4-df4e5d-1f222d-e9f1f0?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