Color

#3358ff

#3358ff
hex#3358ff
rgbrgb(51, 88, 255)
hslhsl(229, 100%, 60%)
oklchoklch(0.548 0.249 267.2)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.149

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffda33

#33beff · #7433ff

#ff3358 · #58ff33

Split-complementary

Open in tool →

#ff7433 · #beff33

#ff33be · #ffda33 · #33ff74

Contrast

#3358ff as textRatioAAAA largeAAAFix
Aaon white
5.28:1passpassfail
  • AAA: use #0533ff as the text (7.18:1)
Aaon black
3.98:1failpassfail
  • AA: use #4265ff as the text (4.54:1)
  • AAA: use #758fff as the text (7.13:1)
  • AA: or shift the background to #ededed (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3358ff as the background.

Brands using this color

Fonts for this mood

#3358ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3358ff
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 #3358ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3358ff-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