Color

#56a3fb

#56a3fb
hex#56a3fb
rgbrgb(86, 163, 251)
hslhsl(212, 95%, 66%)
oklchoklch(0.706 0.15 253.4)
Closest name: Cerulean (#55aaee)Relative luminance 0.3514

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbae56

#56f5fb · #5b56fb

#fb56a3 · #a3fb56

Split-complementary

Open in tool →

#fb5b56 · #f5fb56

#fb56f5 · #fbae56 · #56fb5b

Contrast

#56a3fb as textRatioAAAA largeAAAFix
Aaon white
2.62:1failfailfail
  • AA: use #0670ea as the text (4.65:1)
  • AAA: use #0556b3 as the text (7.03:1)
  • AA: or shift the background to #363636 (4.62:1)
  • AAA: or shift the background to #141414 (7.04:1)
Aaon black
8.03:1passpasspassPasses 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 #56a3fb as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#56a3fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #56a3fb
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 #56a3fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/56a3fb-9caac4-df564e-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