Color

#3aa6f8

#3aa6f8
hex#3aa6f8
rgbrgb(58, 166, 248)
hslhsl(206, 93%, 60%)
oklchoklch(0.702 0.154 245.8)
Closest name: Cerulean (#55aaee)Relative luminance 0.3495

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f88c3a

#3af8eb · #3a47f8

#f83aa6 · #a6f83a

Split-complementary

Open in tool →

#f83a47 · #f8eb3a

#eb3af8 · #f88c3a · #47f83a

Contrast

#3aa6f8 as textRatioAAAA largeAAAFix
Aaon white
2.63:1failfailfail
  • AA: use #0778cf as the text (4.57:1)
  • AAA: use #065999 as the text (7.25:1)
  • AA: or shift the background to #363636 (4.6:1)
  • AAA: or shift the background to #141414 (7.01:1)
Aaon black
7.99:1passpasspassPasses 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 #3aa6f8 as the background.

Brands using this color

Fonts for this mood

#3aa6f8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3aa6f8
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 #3aa6f8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3aa6f8-9caec4-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