Color

#2c4bd8

#2c4bd8
hex#2c4bd8
rgbrgb(44, 75, 216)
hslhsl(229, 69%, 51%)
oklchoklch(0.488 0.217 267.4)
Closest name: Blurple (#5539cc)Relative luminance 0.1053

Colors that go with #2c4bd8

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.

Real palettes that use #2c4bd8

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#d8b92c

#2ca2d8 · #622cd8

#d82c4b · #4bd82c

Split-complementary

Open in tool →

#d8622c · #a2d82c

#d82ca2 · #d8b92c · #2cd862

Contrast

#2c4bd8 as textRatioAAAA largeAAAFix
Aaon white
6.76:1passpassfail
Aaon black
3.11:1failpassfail
  • AA: use #536cdf as the text (4.58:1)
  • AAA: use #7e91e7 as the text (7.09:1)
  • AA: or shift the background to #d4d4d4 (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 #2c4bd8 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2c4bd8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2c4bd8
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 #2c4bd8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2c4bd8-9c9fc4-df7e4e-231f2d-e9eef1?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