Color

#3daef5

#3daef5
hex#3daef5
rgbrgb(61, 174, 245)
hslhsl(203, 90%, 60%)
oklchoklch(0.719 0.143 241)
Closest name: Cerulean (#55aaee)Relative luminance 0.3786

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f5843d

#3df5df · #3d53f5

#f53dae · #aef53d

Split-complementary

Open in tool →

#f53d53 · #f5df3d

#df3df5 · #f5843d · #53f53d

Contrast

#3daef5 as textRatioAAAA largeAAAFix
Aaon white
2.45:1failfailfail
  • AA: use #0a7bc2 as the text (4.54:1)
  • AAA: use #085d91 as the text (7.04:1)
  • AA: or shift the background to #3b3b3b (4.57:1)
  • AAA: or shift the background to #1a1a1a (7.1:1)
Aaon black
8.57:1passpasspassPasses 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 #3daef5 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#3daef5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3daef5
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 #3daef5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3daef5-9cb0c4-df4e5d-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