Color

#2a59b2

#2a59b2
hex#2a59b2
rgbrgb(42, 89, 178)
hslhsl(219, 62%, 43%)
oklchoklch(0.482 0.151 261.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1085

Colors that go with #2a59b2

Charcoal, Sea Green 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 →

#b2822a

#2a9db2 · #3e2ab2

#b22a59 · #59b22a

Split-complementary

Open in tool →

#b23e2a · #9db22a

#b22a9d · #b2822a · #2ab23e

Contrast

#2a59b2 as textRatioAAAA largeAAAFix
Aaon white
6.62:1passpassfail
  • AAA: use #2855a9 as the text (7.09:1)
Aaon black
3.17:1failpassfail
  • AA: use #4174d2 as the text (4.65:1)
  • AAA: use #6e95dd as the text (7.01:1)
  • AA: or shift the background to #d6d6d6 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a59b2 as the background.

Brands using this color

Fonts for this mood

#2a59b2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a59b2
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 #2a59b2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a59b2-9ca5c4-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