Color

#686dd4

#686dd4
hex#686dd4
rgbrgb(104, 109, 212)
hslhsl(237, 56%, 62%)
oklchoklch(0.581 0.155 278.3)
Closest name: slateblue (#6a5acd)Relative luminance 0.1863

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d4cf68

#68a4d4 · #9968d4

#d4686d · #6dd468

Split-complementary

Open in tool →

#d49968 · #a4d468

#d468a4 · #d4cf68 · #68d499

Contrast

#686dd4 as textRatioAAAA largeAAAFix
Aaon white
4.44:1failpassfail
  • AA: use #6469d3 as the text (4.66:1)
  • AAA: use #4047c9 as the text (7.09:1)
  • AA: or shift the background to #080808 (4.51:1)
Aaon black
4.73:1passpassfail
  • AAA: use #8c90de as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #686dd4 as the background.

Brands using this color

Fonts for this mood

#686dd4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #686dd4
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 #686dd4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/686dd4-9f9cc4-df924e-251f2d-e9edf1?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