Color

#2a5fcb

#2a5fcb
hex#2a5fcb
rgbrgb(42, 95, 203)
hslhsl(220, 66%, 48%)
oklchoklch(0.514 0.177 262.4)
Closest name: Denim (#1560bd)Relative luminance 0.1299

Colors that go with #2a5fcb

Charcoal, Amber and 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 →

#cb952a

#2ab0cb · #452acb

#cb2a5f · #5fcb2a

Split-complementary

Open in tool →

#cb452a · #b0cb2a

#cb2ab0 · #cb952a · #2acb45

Contrast

#2a5fcb as textRatioAAAA largeAAAFix
Aaon white
5.84:1passpassfail
  • AAA: use #2454b2 as the text (7.03:1)
Aaon black
3.6:1failpassfail
  • AA: use #4173d8 as the text (4.67:1)
  • AAA: use #6f95e2 as the text (7.07:1)
  • AA: or shift the background to #e3e3e3 (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 #2a5fcb as the background.

Brands using this color

Fonts for this mood

#2a5fcb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a5fcb
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 #2a5fcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a5fcb-9ca5c4-df694e-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