Color

#409efc

#409efc
hex#409efc
rgbrgb(64, 158, 252)
hslhsl(210, 97%, 62%)
oklchoklch(0.688 0.164 251.5)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.3257

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fc9e40

#40fcfc · #4040fc

#fc409e · #9efc40

Split-complementary

Open in tool →

#fc4040 · #fcfc40

#fc40fc · #fc9e40 · #40fc40

Contrast

#409efc as textRatioAAAA largeAAAFix
Aaon white
2.79:1failfailfail
  • AA: use #0373e2 as the text (4.61:1)
  • AAA: use #0357ab as the text (7.11:1)
  • AA: or shift the background to #333333 (4.52:1)
  • AAA: or shift the background to #0a0a0a (7.08:1)
Aaon black
7.51:1passpasspassPasses 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 #409efc 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

#409efc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #409efc
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 #409efc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/409efc-9cabc4-df514e-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