Color

#4b33ff

#4b33ff
hex#4b33ff
rgbrgb(75, 51, 255)
hslhsl(247, 100%, 60%)
oklchoklch(0.51 0.277 275.5)
Closest name: Meteor Shower (#5533ff)Relative luminance 0.1108

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e7ff33

#3381ff · #b133ff

#ff4b33 · #33ff4b

Split-complementary

Open in tool →

#ffb133 · #81ff33

#ff3381 · #e7ff33 · #33ffb1

Contrast

#4b33ff as textRatioAAAA largeAAAFix
Aaon white
6.53:1passpassfail
  • AAA: use #4229ff as the text (7.02:1)
Aaon black
3.22:1failpassfail
  • AA: use #6f5cff as the text (4.65:1)
  • AAA: use #9385ff as the text (7.04:1)
  • AA: or shift the background to #d9d9d9 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b33ff as the background.

Brands using this color

Fonts for this mood

#4b33ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4b33ff
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 #4b33ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b33ff-a59cc4-dfaa4e-271f2d-e9ecf1?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