Color

#4db1ea

#4db1ea
hex#4db1ea
rgbrgb(77, 177, 234)
hslhsl(202, 79%, 61%)
oklchoklch(0.725 0.124 237.1)
Closest name: Cerulean (#55aaee)Relative luminance 0.3896

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ea874d

#4dead5 · #4d62ea

#ea4db1 · #b1ea4d

Split-complementary

Open in tool →

#ea4d62 · #ead54d

#d54dea · #ea874d · #62ea4d

Contrast

#4db1ea as textRatioAAAA largeAAAFix
Aaon white
2.39:1failfailfail
  • AA: use #157bb7 as the text (4.62:1)
  • AAA: use #105d89 as the text (7.12:1)
  • AA: or shift the background to #3d3d3d (4.55:1)
  • AAA: or shift the background to #1c1c1c (7.14:1)
Aaon black
8.79:1passpasspassPasses 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 #4db1ea as the background.

Brands using this color

Fonts for this mood

#4db1ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4db1ea
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 #4db1ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4db1ea-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