Color

#4da6ff

#4da6ff
hex#4da6ff
rgbrgb(77, 166, 255)
hslhsl(210, 100%, 65%)
oklchoklch(0.711 0.156 251)
Closest name: Cerulean (#55aaee)Relative luminance 0.3607

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffa64d

#4dffff · #4d4dff

#ff4da6 · #a6ff4d

Split-complementary

Open in tool →

#ff4d4d · #ffff4d

#ff4dff · #ffa64d · #4dff4d

Contrast

#4da6ff as textRatioAAAA largeAAAFix
Aaon white
2.56:1failfailfail
  • AA: use #0073e6 as the text (4.57:1)
  • AAA: use #0057ad as the text (7.08:1)
  • AA: or shift the background to #383838 (4.59:1)
  • AAA: or shift the background to #171717 (7.01:1)
Aaon black
8.21:1passpasspassPasses 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 #4da6ff as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#4da6ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4da6ff
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 #4da6ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4da6ff-9cabc4-df514e-1f202d-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