Color

#4eb4ef

#4eb4ef
hex#4eb4ef
rgbrgb(78, 180, 239)
hslhsl(202, 83%, 62%)
oklchoklch(0.735 0.127 237.5)
Closest name: Cerulean (#55aaee)Relative luminance 0.4049

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef894e

#4eefd9 · #4e63ef

#ef4eb4 · #b4ef4e

Split-complementary

Open in tool →

#ef4e63 · #efd94e

#d94eef · #ef894e · #63ef4e

Contrast

#4eb4ef as textRatioAAAA largeAAAFix
Aaon white
2.31:1failfailfail
  • AA: use #1179b6 as the text (4.74:1)
  • AAA: use #0d5d8c as the text (7.09:1)
  • AA: or shift the background to #3d3d3d (4.71:1)
  • AAA: or shift the background to #1f1f1f (7.14:1)
Aaon black
9.1:1passpasspassPasses 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 #4eb4ef as the background.

Brands using this color

Fonts for this mood

#4eb4ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4eb4ef
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 #4eb4ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4eb4ef-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