Color

#3ea8fe

#3ea8fe
hex#3ea8fe
rgbrgb(62, 168, 254)
hslhsl(207, 99%, 62%)
oklchoklch(0.711 0.158 247.2)
Closest name: Cerulean (#55aaee)Relative luminance 0.3619

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fe953e

#3efef4 · #3e48fe

#fe3ea8 · #a8fe3e

Split-complementary

Open in tool →

#fe3e48 · #fef43e

#f43efe · #fe953e · #48fe3e

Contrast

#3ea8fe as textRatioAAAA largeAAAFix
Aaon white
2.55:1failfailfail
  • AA: use #0176d5 as the text (4.61:1)
  • AAA: use #015aa2 as the text (7.03:1)
  • AA: or shift the background to #383838 (4.6:1)
  • AAA: or shift the background to #171717 (7.03:1)
Aaon black
8.24:1passpasspassPasses 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 #3ea8fe as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#3ea8fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3ea8fe
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 #3ea8fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ea8fe-9cadc4-df4e53-1f212d-e9f1f1?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