Color

#2a7cdf

#2a7cdf
hex#2a7cdf
rgbrgb(42, 124, 223)
hslhsl(213, 74%, 52%)
oklchoklch(0.59 0.17 255.7)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2024

Colors that go with #2a7cdf

Charcoal, Crimson and Copper 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 →

#df8e2a

#2ad6df · #332adf

#df2a7c · #7cdf2a

Split-complementary

Open in tool →

#df332a · #d6df2a

#df2ad6 · #df8e2a · #2adf33

Contrast

#2a7cdf as textRatioAAAA largeAAAFix
Aaon white
4.16:1failpassfail
  • AA: use #2074d9 as the text (4.6:1)
  • AAA: use #1957a4 as the text (7.14:1)
  • AA: or shift the background to #121212 (4.5:1)
Aaon black
5.05:1passpassfail
  • AAA: use #5b9ae6 as the text (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a7cdf as the background.

Brands using this color

Fonts for this mood

#2a7cdf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a7cdf
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 #2a7cdf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a7cdf-9ca9c4-df584e-1f202d-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