Color

#263fe3

#263fe3
hex#263fe3
rgbrgb(38, 63, 227)
hslhsl(232, 77%, 52%)
oklchoklch(0.477 0.244 267.5)
Closest name: C64 Blue (#003aff)Relative luminance 0.0951

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e3ca26

#269ee3 · #6b26e3

#e3263f · #3fe326

Split-complementary

Open in tool →

#e36b26 · #9ee326

#e3269e · #e3ca26 · #26e36b

Contrast

#263fe3 as textRatioAAAA largeAAAFix
Aaon white
7.23:1passpasspassPasses AAA — no fix needed.
Aaon black
2.9:1failfailfail
  • AA: use #586be9 as the text (4.69:1)
  • AAA: use #818fef as the text (7.11:1)
  • AA: or shift the background to #cccccc (4.51:1)
  • AAA: or shift the background to #fcfcfc (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263fe3 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

#263fe3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263fe3
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 #263fe3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263fe3-9c9dc4-df864e-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