Color

#3daeff

#3daeff
hex#3daeff
rgbrgb(61, 174, 255)
hslhsl(205, 100%, 62%)
oklchoklch(0.724 0.154 244.4)
Closest name: Cerulean (#55aaee)Relative luminance 0.3848

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ff8e3d

#3dffef · #3d4dff

#ff3dae · #aeff3d

Split-complementary

Open in tool →

#ff3d4d · #ffef3d

#ef3dff · #ff8e3d · #4dff3d

Contrast

#3daeff as textRatioAAAA largeAAAFix
Aaon white
2.41:1failfailfail
  • AA: use #0077cc as the text (4.66:1)
  • AAA: use #005999 as the text (7.27:1)
  • AA: or shift the background to #3b3b3b (4.64:1)
  • AAA: or shift the background to #1c1c1c (7.06:1)
Aaon black
8.7:1passpasspassPasses 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 #3daeff as the background.

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/3daeff-9cafc4-df4e58-1f212d-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