Color

#2759b4

#2759b4
hex#2759b4
rgbrgb(39, 89, 180)
hslhsl(219, 64%, 43%)
oklchoklch(0.483 0.155 261.2)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1087

Colors that go with #2759b4

Charcoal, Sienna and Amber 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 →

#b48327

#279fb4 · #3d27b4

#b42759 · #59b427

Split-complementary

Open in tool →

#b43d27 · #9fb427

#b4279f · #b48327 · #27b43d

Contrast

#2759b4 as textRatioAAAA largeAAAFix
Aaon white
6.62:1passpassfail
  • AAA: use #2654ab as the text (7.15:1)
Aaon black
3.17:1failpassfail
  • AA: use #3f73d5 as the text (4.62:1)
  • AAA: use #6d95df as the text (7.01:1)
  • AA: or shift the background to #d6d6d6 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2759b4 as the background.

Brands using this color

Fonts for this mood

#2759b4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2759b4
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 #2759b4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2759b4-9ca5c4-df664e-211f2d-e9f0f1?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