Color

#0b65cb

#0b65cb
hex#0b65cb
rgbrgb(11, 101, 203)
hslhsl(212, 90%, 42%)
oklchoklch(0.52 0.176 256.6)
Closest name: God of Rain (#4466cc)Relative luminance 0.1369

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cb720b

#0bc5cb · #110bcb

#cb0b65 · #65cb0b

Split-complementary

Open in tool →

#cb110b · #c5cb0b

#cb0bc5 · #cb720b · #0bcb11

Contrast

#0b65cb as textRatioAAAA largeAAAFix
Aaon white
5.62:1passpassfail
  • AAA: use #0956ae as the text (7.11:1)
Aaon black
3.74:1failpassfail
  • AA: use #0c73e9 as the text (4.64:1)
  • AAA: use #4798f5 as the text (7.08:1)
  • AA: or shift the background to #e6e6e6 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b65cb as the background.

Brands using this color

Fonts for this mood

#0b65cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b65cb
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 #0b65cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b65cb-9caac4-df564e-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