Color

#359cfd

#359cfd
hex#359cfd
rgbrgb(53, 156, 253)
hslhsl(209, 98%, 60%)
oklchoklch(0.681 0.171 250.9)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.3163

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fd9635

#35fdfa · #3538fd

#fd359c · #9cfd35

Split-complementary

Open in tool →

#fd3538 · #fdfa35

#fa35fd · #fd9635 · #38fd35

Contrast

#359cfd as textRatioAAAA largeAAAFix
Aaon white
2.87:1failfailfail
  • AA: use #0274de as the text (4.61:1)
  • AAA: use #0257a7 as the text (7.18:1)
  • AA: or shift the background to #303030 (4.6:1)
  • AAA: or shift the background to #050505 (7.11:1)
Aaon black
7.33:1passpasspassPasses 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 #359cfd as the background.

Brands using this color

Fonts for this mood

#359cfd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #359cfd
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 #359cfd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/359cfd-9cacc4-df4e4e-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