Color

#4354ef

#4354ef
hex#4354ef
rgbrgb(67, 84, 239)
hslhsl(234, 84%, 60%)
oklchoklch(0.534 0.23 271.2)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1377

Tints & shades

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

Harmonies

Complementary

Open in tool →

#efde43

#43aaef · #8843ef

#ef4354 · #54ef43

Split-complementary

Open in tool →

#ef8843 · #aaef43

#ef43aa · #efde43 · #43ef88

Contrast

#4354ef as textRatioAAAA largeAAAFix
Aaon white
5.6:1passpassfail
  • AAA: use #273bec as the text (7.18:1)
Aaon black
3.75:1failpassfail
  • AA: use #5666f0 as the text (4.55:1)
  • AAA: use #8590f4 as the text (7.29:1)
  • AA: or shift the background to #e8e8e8 (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 #4354ef as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#4354ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4354ef
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 #4354ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4354ef-9d9cc4-df8a4e-241f2d-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