Color

#0a4166

#0a4166
hex#0a4166
rgbrgb(10, 65, 102)
hslhsl(204, 82%, 22%)
oklchoklch(0.362 0.083 244.5)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.048

Tints & shades

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

Harmonies

Complementary

Open in tool →

#662f0a

#0a665d · #0a1366

#660a41 · #41660a

Split-complementary

Open in tool →

#660a13 · #665d0a

#5d0a66 · #662f0a · #13660a

Contrast

#0a4166 as textRatioAAAA largeAAAFix
Aaon white
10.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.96:1failfailfail
  • AA: use #137abe as the text (4.56:1)
  • AAA: use #2a9dea as the text (7.11:1)
  • AA: or shift the background to #a8a8a8 (4.5:1)
  • AAA: or shift the background to #d1d1d1 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a4166 as the background.

Brands using this color

Fonts for this mood

#0a4166 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a4166
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 #0a4166 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a4166-9cafc4-df4e5a-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