Color

#2a55cb

#2a55cb
hex#2a55cb
rgbrgb(42, 85, 203)
hslhsl(224, 66%, 48%)
oklchoklch(0.494 0.19 264.9)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.113

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cba02a

#2aa5cb · #4f2acb

#cb2a55 · #55cb2a

Split-complementary

Open in tool →

#cb4f2a · #a5cb2a

#cb2aa5 · #cba02a · #2acb4f

Contrast

#2a55cb as textRatioAAAA largeAAAFix
Aaon white
6.44:1passpassfail
  • AAA: use #274fbe as the text (7.12:1)
Aaon black
3.26:1failpassfail
  • AA: use #4970da as the text (4.61:1)
  • AAA: use #7894e3 as the text (7.14:1)
  • AA: or shift the background to #d9d9d9 (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 #2a55cb as the background.

Brands using this color

Fonts for this mood

#2a55cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a55cb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #2a55cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a55cb-9ca2c4-df724e-221f2d-e9eff1?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