Color

#2d5fa4

#2d5fa4
hex#2d5fa4
rgbrgb(45, 95, 164)
hslhsl(215, 57%, 41%)
oklchoklch(0.487 0.123 257.1)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1142

Colors that go with #2d5fa4

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 →

#a4722d

#2d9aa4 · #372da4

#a42d5f · #5fa42d

Split-complementary

Open in tool →

#a4372d · #9aa42d

#a42d9a · #a4722d · #2da437

Contrast

#2d5fa4 as textRatioAAAA largeAAAFix
Aaon white
6.39:1passpassfail
  • AAA: use #2a5898 as the text (7.12:1)
Aaon black
3.28:1failpassfail
  • AA: use #3b76c9 as the text (4.62:1)
  • AAA: use #6b98d6 as the text (7.09:1)
  • AA: or shift the background to #d9d9d9 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d5fa4 as the background.

Brands using this color

Fonts for this mood

#2d5fa4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d5fa4
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 #2d5fa4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d5fa4-9ca8c4-df5d4e-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