Color

#264bba

#264bba
hex#264bba
rgbrgb(38, 75, 186)
hslhsl(225, 66%, 44%)
oklchoklch(0.458 0.18 265.5)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0899

Colors that go with #264bba

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 →

#ba9526

#2695ba · #4b26ba

#ba264b · #4bba26

Split-complementary

Open in tool →

#ba4b26 · #95ba26

#ba2695 · #ba9526 · #26ba4b

Contrast

#264bba as textRatioAAAA largeAAAFix
Aaon white
7.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2.8:1failfailfail
  • AA: use #4d71db as the text (4.7:1)
  • AAA: use #7892e3 as the text (7.02:1)
  • AA: or shift the background to #c9c9c9 (4.53:1)
  • AAA: or shift the background to #f7f7f7 (7.01:1)

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

Brands using this color

Fonts for this mood

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

mcpConnect your agent — build around #264bba
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 #264bba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/264bba-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