Color

#3480ea

#3480ea
hex#3480ea
rgbrgb(52, 128, 234)
hslhsl(215, 81%, 56%)
oklchoklch(0.609 0.177 257.6)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2211

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ea9e34

#34dbea · #4334ea

#ea3480 · #80ea34

Split-complementary

Open in tool →

#ea4334 · #dbea34

#ea34db · #ea9e34 · #34ea43

Contrast

#3480ea as textRatioAAAA largeAAAFix
Aaon white
3.87:1failpassfail
  • AA: use #1d71e7 as the text (4.6:1)
  • AAA: use #1254af as the text (7.21:1)
  • AA: or shift the background to #171717 (4.63:1)
Aaon black
5.42:1passpassfail
  • AAA: use #5997ee as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3480ea as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#3480ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3480ea
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 #3480ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3480ea-9ca8c4-df5d4e-201f2d-e9f0f1?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