Color

#0c3d64

#0c3d64
hex#0c3d64
rgbrgb(12, 61, 100)
hslhsl(207, 79%, 22%)
oklchoklch(0.351 0.084 247.8)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0434

Tints & shades

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

Harmonies

Complementary

Open in tool →

#64340c

#0c6460 · #0c1064

#640c3d · #3d640c

Split-complementary

Open in tool →

#640c10 · #64600c

#600c64 · #64340c · #10640c

Contrast

#0c3d64 as textRatioAAAA largeAAAFix
Aaon white
11.25:1passpasspassPasses AAA — no fix needed.
Aaon black
1.87:1failfailfail
  • AA: use #1879c9 as the text (4.62:1)
  • AAA: use #3f9ce9 as the text (7.14:1)
  • AA: or shift the background to #a6a6a6 (4.62:1)
  • AAA: or shift the background to #cccccc (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 #0c3d64 as the background.

Brands using this color

Fonts for this mood

#0c3d64 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c3d64
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 #0c3d64 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c3d64-9cadc4-df4e53-1f212d-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