Color

#3faeee

#3faeee
hex#3faeee
rgbrgb(63, 174, 238)
hslhsl(202, 84%, 59%)
oklchoklch(0.716 0.136 238.5)
Closest name: Cerulean (#55aaee)Relative luminance 0.375

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ee7f3f

#3feed7 · #3f56ee

#ee3fae · #aeee3f

Split-complementary

Open in tool →

#ee3f56 · #eed73f

#d73fee · #ee7f3f · #56ee3f

Contrast

#3faeee as textRatioAAAA largeAAAFix
Aaon white
2.47:1failfailfail
  • AA: use #107ab7 as the text (4.68:1)
  • AAA: use #0c5b88 as the text (7.32:1)
  • AA: or shift the background to #3b3b3b (4.53:1)
  • AAA: or shift the background to #1a1a1a (7.04:1)
Aaon black
8.5:1passpasspassPasses 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 #3faeee as the background.

Brands using this color

Palettes built around it

Fonts for this mood

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

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

tool url/palettes/new/3faeee-9cb1c4-df4e5f-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