Color

#05366b

#05366b
hex#05366b
rgbrgb(5, 54, 107)
hslhsl(211, 91%, 22%)
oklchoklch(0.336 0.105 254.9)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0373

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6b3a05

#05696b · #07056b

#6b0536 · #366b05

Split-complementary

Open in tool →

#6b0705 · #696b05

#6b0569 · #6b3a05 · #056b07

Contrast

#05366b as textRatioAAAA largeAAAFix
Aaon white
12.02:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #0b74e5 as the text (4.64:1)
  • AAA: use #4199f6 as the text (7.11:1)
  • AA: or shift the background to #a1a1a1 (4.65:1)
  • AAA: or shift the background to #c7c7c7 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #05366b as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#05366b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #05366b
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 #05366b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/05366b-9cabc4-df534e-1f202d-e9f1f1?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