Color

#3dc4fa

#3dc4fa
hex#3dc4fa
rgbrgb(61, 196, 250)
hslhsl(197, 95%, 61%)
oklchoklch(0.772 0.136 229.7)
Closest name: deepskyblue (#00bfff)Relative luminance 0.4737

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fa733d

#3dfad1 · #3d66fa

#fa3dc4 · #c4fa3d

Split-complementary

Open in tool →

#fa3d66 · #fad13d

#d13dfa · #fa733d · #66fa3d

Contrast

#3dc4fa as textRatioAAAA largeAAAFix
Aaon white
2:1failfailfail
  • AA: use #047eae as the text (4.56:1)
  • AAA: use #035e81 as the text (7.19:1)
  • AA: or shift the background to #474747 (4.63:1)
  • AAA: or shift the background to #2b2b2b (7.06:1)
Aaon black
10.47:1passpasspassPasses 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 #3dc4fa as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#3dc4fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3dc4fa
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 #3dc4fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3dc4fa-9cb4c4-df4e6b-1f232d-e9f1ef?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