Color

#3eaae5

#3eaae5
hex#3eaae5
rgbrgb(62, 170, 229)
hslhsl(201, 76%, 57%)
oklchoklch(0.702 0.129 237)
Closest name: Cerulean (#55aaee)Relative luminance 0.3543

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e5783e

#3ee5cc · #3e57e5

#e53eaa · #aae53e

Split-complementary

Open in tool →

#e53e57 · #e5cc3e

#cc3ee5 · #e5783e · #57e53e

Contrast

#3eaae5 as textRatioAAAA largeAAAFix
Aaon white
2.6:1failfailfail
  • AA: use #187db4 as the text (4.53:1)
  • AAA: use #125e87 as the text (7.05:1)
  • AA: or shift the background to #383838 (4.52:1)
  • AAA: or shift the background to #141414 (7.09:1)
Aaon black
8.09:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3eaae5 as the background.

Brands using this color

Fonts for this mood

#3eaae5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3eaae5
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 #3eaae5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3eaae5-9cb1c4-df4e62-1f222d-e9f1f0?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