Color

#3390fa

#3390fa
hex#3390fa
rgbrgb(51, 144, 250)
hslhsl(212, 95%, 59%)
oklchoklch(0.653 0.18 254.6)
Closest name: dodgerblue (#1e90ff)Relative luminance 0.2755

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fa9d33

#33f3fa · #3a33fa

#fa3390 · #90fa33

Split-complementary

Open in tool →

#fa3a33 · #f3fa33

#fa33f3 · #fa9d33 · #33fa3a

Contrast

#3390fa as textRatioAAAA largeAAAFix
Aaon white
3.23:1failpassfail
  • AA: use #0670ea as the text (4.65:1)
  • AAA: use #0556b3 as the text (7.03:1)
  • AA: or shift the background to #292929 (4.51:1)
Aaon black
6.51:1passpassfail
  • AAA: use #4298fa as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3390fa 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

#3390fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3390fa
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 #3390fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3390fa-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