Color

#0637cb

#0637cb
hex#0637cb
rgbrgb(6, 55, 203)
hslhsl(225, 94%, 41%)
oklchoklch(0.432 0.229 264)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0708

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cb9a06

#069acb · #3706cb

#cb0637 · #37cb06

Split-complementary

Open in tool →

#cb3706 · #9acb06

#cb069a · #cb9a06 · #06cb37

Contrast

#0637cb as textRatioAAAA largeAAAFix
Aaon white
8.69:1passpasspassPasses AAA — no fix needed.
Aaon black
2.42:1failfailfail
  • AA: use #3969f9 as the text (4.56:1)
  • AAA: use #7092fb as the text (7.19:1)
  • AA: or shift the background to #bdbdbd (4.63:1)
  • AAA: or shift the background to #e8e8e8 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0637cb as the background.

Brands using this color

Fonts for this mood

#0637cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0637cb
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 #0637cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0637cb-9ca1c4-df754e-221f2d-e9eff1?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