Color

#4fa6f3

#4fa6f3
hex#4fa6f3
rgbrgb(79, 166, 243)
hslhsl(208, 87%, 63%)
oklchoklch(0.706 0.141 248)
Closest name: Cerulean (#55aaee)Relative luminance 0.3541

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f39b4f

#4ff3ed · #4f54f3

#f34fa6 · #a6f34f

Split-complementary

Open in tool →

#f34f54 · #f3ed4f

#ed4ff3 · #f39b4f · #54f34f

Contrast

#4fa6f3 as textRatioAAAA largeAAAFix
Aaon white
2.6:1failfailfail
  • AA: use #0f77d2 as the text (4.58:1)
  • AAA: use #0b599d as the text (7.17:1)
  • AA: or shift the background to #383838 (4.51:1)
  • AAA: or shift the background to #141414 (7.09:1)
Aaon black
8.08:1passpasspassPasses 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 #4fa6f3 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#4fa6f3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4fa6f3
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 #4fa6f3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4fa6f3-9cadc4-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