Color

#2d59a4

#2d59a4
hex#2d59a4
rgbrgb(45, 89, 164)
hslhsl(218, 57%, 41%)
oklchoklch(0.474 0.131 260.3)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1038

Colors that go with #2d59a4

Charcoal, Sea Green and Sienna 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 →

#a4782d

#2d94a4 · #3d2da4

#a42d59 · #59a42d

Split-complementary

Open in tool →

#a43d2d · #94a42d

#a42d94 · #a4782d · #2da43d

Contrast

#2d59a4 as textRatioAAAA largeAAAFix
Aaon white
6.83:1passpassfail
  • AAA: use #2c56a0 as the text (7.13:1)
Aaon black
3.08:1failpassfail
  • AA: use #4375cb as the text (4.65:1)
  • AAA: use #7398d9 as the text (7.22:1)
  • AA: or shift the background to #d4d4d4 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d59a4 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

#2d59a4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d59a4
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 #2d59a4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d59a4-9ca6c4-df644e-201f2d-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