Color

#0b048f

#0b048f
hex#0b048f
rgbrgb(11, 4, 143)
hslhsl(243, 95%, 29%)
oklchoklch(0.3 0.199 266.6)
Closest name: darkblue (#00008b)Relative luminance 0.0214

Tints & shades

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

Harmonies

Complementary

Open in tool →

#899004

#044390 · #510490

#900b04 · #04900b

Split-complementary

Open in tool →

#905104 · #439004

#900443 · #899004 · #049051

Contrast

#0b048f as textRatioAAAA largeAAAFix
Aaon white
14.7:1passpasspassPasses AAA — no fix needed.
Aaon black
1.43:1failfailfail
  • AA: use #6860fb as the text (4.65:1)
  • AAA: use #8d88fc as the text (7.06:1)
  • AA: or shift the background to #8f8f8f (4.55:1)
  • AAA: or shift the background to #b3b3b3 (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 #0b048f 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

#0b048f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b048f
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 #0b048f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b048f-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