Color

#0644ef

#0644ef
hex#0644ef
rgbrgb(6, 68, 239)
hslhsl(224, 95%, 48%)
oklchoklch(0.49 0.258 263.8)
Closest name: C64 Blue (#003aff)Relative luminance 0.104

Tints & shades

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

Harmonies

Complementary

Open in tool →

#efb106

#06b8ef · #3c06ef

#ef0644 · #44ef06

Split-complementary

Open in tool →

#ef3c06 · #b8ef06

#ef06b8 · #efb106 · #06ef3c

Contrast

#0644ef as textRatioAAAA largeAAAFix
Aaon white
6.82:1passpassfail
Aaon black
3.08:1failpassfail
  • AA: use #3368fa as the text (4.5:1)
  • AAA: use #6a91fb as the text (7.06:1)
  • AA: or shift the background to #d4d4d4 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0644ef 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

#0644ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0644ef
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 #0644ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0644ef-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