Color

#3e80ea

#3e80ea
hex#3e80ea
rgbrgb(62, 128, 234)
hslhsl(217, 80%, 58%)
oklchoklch(0.612 0.174 259.5)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.224

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eaa83e

#3ed6ea · #523eea

#ea3e80 · #80ea3e

Split-complementary

Open in tool →

#ea523e · #d6ea3e

#ea3ed6 · #eaa83e · #3eea52

Contrast

#3e80ea as textRatioAAAA largeAAAFix
Aaon white
3.83:1failpassfail
  • AA: use #2771e7 as the text (4.56:1)
  • AAA: use #1453b8 as the text (7.1:1)
  • AA: or shift the background to #1a1a1a (4.54:1)
Aaon black
5.48:1passpassfail
  • AAA: use #6398ee as the text (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e80ea as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#3e80ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3e80ea
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 #3e80ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e80ea-9ca7c4-df624e-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