Color

#356bf3

#356bf3
hex#356bf3
rgbrgb(53, 107, 243)
hslhsl(223, 89%, 58%)
oklchoklch(0.573 0.212 264.3)
Closest name: Bluetiful (#3c69e7)Relative luminance 0.1774

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f3bd35

#35caf3 · #5e35f3

#f3356b · #6bf335

Split-complementary

Open in tool →

#f35e35 · #caf335

#f335ca · #f3bd35 · #35f35e

Contrast

#356bf3 as textRatioAAAA largeAAAFix
Aaon white
4.62:1passpassfail
Aaon black
4.55:1passpassfail
  • AAA: use #6e95f7 as the text (7.31:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #356bf3 as the background.

Brands using this color

Fonts for this mood

#356bf3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #356bf3
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 #356bf3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/356bf3-9ca3c4-df704e-211f2d-e9eff1?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