Color

#0b2bcb

#0b2bcb
hex#0b2bcb
rgbrgb(11, 43, 203)
hslhsl(230, 90%, 42%)
oklchoklch(0.416 0.24 265)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0611

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cbab0b

#0b8bcb · #4b0bcb

#cb0b2b · #2bcb0b

Split-complementary

Open in tool →

#cb4b0b · #8bcb0b

#cb0b8b · #cbab0b · #0bcb4b

Contrast

#0b2bcb as textRatioAAAA largeAAAFix
Aaon white
9.45:1passpasspassPasses AAA — no fix needed.
Aaon black
2.22:1failfailfail
  • AA: use #4c68f6 as the text (4.62:1)
  • AAA: use #7c91f8 as the text (7.26:1)
  • AA: or shift the background to #b3b3b3 (4.51:1)
  • AAA: or shift the background to #dedede (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b2bcb 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

#0b2bcb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b2bcb
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 #0b2bcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b2bcb-9c9ec4-df814e-231f2d-e9eef1?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