Color

#3969ef

#3969ef
hex#3969ef
rgbrgb(57, 105, 239)
hslhsl(224, 85%, 58%)
oklchoklch(0.567 0.209 265.2)
Closest name: Bluetiful (#3c69e7)Relative luminance 0.1721

Tints & shades

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

Harmonies

Complementary

Open in tool →

#efbe39

#39c4ef · #6339ef

#ef3969 · #69ef39

Split-complementary

Open in tool →

#ef6339 · #c4ef39

#ef39c4 · #efbe39 · #39ef63

Contrast

#3969ef as textRatioAAAA largeAAAFix
Aaon white
4.73:1passpassfail
  • AAA: use #1247d9 as the text (7.17:1)
Aaon black
4.44:1failpassfail
  • AA: use #3e6def as the text (4.64:1)
  • AAA: use #7194f4 as the text (7.24:1)
  • AA: or shift the background to #fafafa (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3969ef 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

#3969ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3969ef
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 #3969ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3969ef-9ca2c4-df724e-221f2d-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