Color

#4065dd

#4065dd
hex#4065dd
rgbrgb(64, 101, 221)
hslhsl(226, 70%, 56%)
oklchoklch(0.549 0.188 267)
Closest name: royalblue (#4169e1)Relative luminance 0.1562

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ddb940

#40b3dd · #6a40dd

#dd4065 · #65dd40

Split-complementary

Open in tool →

#dd6a40 · #b3dd40

#dd40b3 · #ddb940 · #40dd6a

Contrast

#4065dd as textRatioAAAA largeAAAFix
Aaon white
5.09:1passpassfail
  • AAA: use #244bcc as the text (7.11:1)
Aaon black
4.12:1failpassfail
  • AA: use #4d6fe0 as the text (4.67:1)
  • AAA: use #7992e7 as the text (7.08:1)
  • AA: or shift the background to #f2f2f2 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4065dd 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

#4065dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4065dd
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 #4065dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4065dd-9ca1c4-df774e-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