Color

#355afd

#355afd
hex#355afd
rgbrgb(53, 90, 253)
hslhsl(229, 98%, 60%)
oklchoklch(0.551 0.244 267.3)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.1516

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fdd835

#35befd · #7435fd

#fd355a · #5afd35

Split-complementary

Open in tool →

#fd7435 · #befd35

#fd35be · #fdd835 · #35fd74

Contrast

#355afd as textRatioAAAA largeAAAFix
Aaon white
5.21:1passpassfail
  • AAA: use #0834fd as the text (7.19:1)
Aaon black
4.03:1failpassfail
  • AA: use #4466fd as the text (4.56:1)
  • AAA: use #778ffe as the text (7.14:1)
  • AA: or shift the background to #f0f0f0 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #355afd as the background.

Brands using this color

Fonts for this mood

#355afd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #355afd
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 #355afd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/355afd-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