Color

#3ea4fe

#3ea4fe
hex#3ea4fe
rgbrgb(62, 164, 254)
hslhsl(208, 99%, 62%)
oklchoklch(0.702 0.162 249)
Closest name: Cerulean (#55aaee)Relative luminance 0.3473

Colors that go with #3ea4fe

Charcoal, Tomato and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fe983e

#3efef8 · #3e45fe

#fe3ea4 · #a4fe3e

Split-complementary

Open in tool →

#fe3e45 · #fef83e

#f83efe · #fe983e · #45fe3e

Contrast

#3ea4fe as textRatioAAAA largeAAAFix
Aaon white
2.64:1failfailfail
  • AA: use #0175da as the text (4.61:1)
  • AAA: use #0157a2 as the text (7.28:1)
  • AA: or shift the background to #363636 (4.57:1)
  • AAA: or shift the background to #121212 (7.09:1)
Aaon black
7.95:1passpasspassPasses 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 #3ea4fe as the background.

Brands using this color

Fonts for this mood

#3ea4fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3ea4fe
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3ea4fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ea4fe-9cadc4-df4e51-1f212d-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