Color

#3fa2ee

#3fa2ee
hex#3fa2ee
rgbrgb(63, 162, 238)
hslhsl(206, 84%, 59%)
oklchoklch(0.689 0.144 245.5)
Closest name: Cerulean (#55aaee)Relative luminance 0.3307

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ee8b3f

#3feee3 · #3f4aee

#ee3fa2 · #a2ee3f

Split-complementary

Open in tool →

#ee3f4a · #eee33f

#e33fee · #ee8b3f · #4aee3f

Contrast

#3fa2ee as textRatioAAAA largeAAAFix
Aaon white
2.76:1failfailfail
  • AA: use #127aca as the text (4.5:1)
  • AAA: use #0d5b96 as the text (7.11:1)
  • AA: or shift the background to #333333 (4.58:1)
  • AAA: or shift the background to #0d0d0d (7.05:1)
Aaon black
7.61:1passpasspassPasses 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 #3fa2ee as the background.

Brands using this color

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

Fonts for this mood

#3fa2ee reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3fa2ee
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 #3fa2ee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fa2ee-9caec4-df4e56-1f212d-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