Color

#264ca6

#264ca6
hex#264ca6
rgbrgb(38, 76, 166)
hslhsl(222, 63%, 40%)
oklchoklch(0.444 0.152 264)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0833

Colors that go with #264ca6

Charcoal, Sea Green and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a68026

#268da6 · #3f26a6

#a6264c · #4ca626

Split-complementary

Open in tool →

#a63f26 · #8da626

#a6268d · #a68026 · #26a63f

Contrast

#264ca6 as textRatioAAAA largeAAAFix
Aaon white
7.87:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #4873d5 as the text (4.69:1)
  • AAA: use #7696e0 as the text (7.21:1)
  • AA: or shift the background to #c4c4c4 (4.51:1)
  • AAA: or shift the background to #f2f2f2 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #264ca6 as the background.

Brands using this color

Fonts for this mood

#264ca6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #264ca6
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #264ca6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/264ca6-9ca3c4-df6e4e-211f2d-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