Color

#0c233c

#0c233c
hex#0c233c
rgbrgb(12, 35, 60)
hslhsl(211, 67%, 14%)
oklchoklch(0.252 0.056 252.5)
Closest name: Dark Eclipse (#112244)Relative luminance 0.0161

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3c240c

#0c3b3c · #0d0c3c

#3c0c23 · #233c0c

Split-complementary

Open in tool →

#3c0d0c · #3b3c0c

#3c0c3b · #3c240c · #0c3c0d

Contrast

#0c233c as textRatioAAAA largeAAAFix
Aaon white
15.89:1passpasspassPasses AAA — no fix needed.
Aaon black
1.32:1failfailfail
  • AA: use #2878cc as the text (4.65:1)
  • AAA: use #5999de as the text (7.04:1)
  • AA: or shift the background to #8a8a8a (4.6:1)
  • AAA: or shift the background to #adadad (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c233c as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0c233c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c233c
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 #0c233c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c233c-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