Color

#0b048b

#0b048b
hex#0b048b
rgbrgb(11, 4, 139)
hslhsl(243, 94%, 28%)
oklchoklch(0.295 0.195 266.8)
Closest name: darkblue (#00008b)Relative luminance 0.0202

Tints & shades

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

Harmonies

Complementary

Open in tool →

#848b04

#04418b · #4e048b

#8b0b04 · #048b0b

Split-complementary

Open in tool →

#8b4e04 · #418b04

#8b0441 · #848b04 · #048b4e

Contrast

#0b048b as textRatioAAAA largeAAAFix
Aaon white
14.95:1passpasspassPasses AAA — no fix needed.
Aaon black
1.4:1failfailfail
  • AA: use #6861fa as the text (4.68:1)
  • AAA: use #8e88fb as the text (7.06:1)
  • AA: or shift the background to #8f8f8f (4.62:1)
  • AAA: or shift the background to #b3b3b3 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b048b 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

#0b048b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b048b
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 #0b048b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b048b-a39cc4-dfa04e-261f2d-e9edf1?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