Color

#688fe3

#688fe3
hex#688fe3
rgbrgb(104, 143, 227)
hslhsl(221, 69%, 65%)
oklchoklch(0.659 0.133 264.2)
Closest name: cornflowerblue (#6495ed)Relative luminance 0.2813

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e3bc68

#68cde3 · #7f68e3

#e3688f · #8fe368

Split-complementary

Open in tool →

#e37f68 · #cde368

#e368cd · #e3bc68 · #68e37f

Contrast

#688fe3 as textRatioAAAA largeAAAFix
Aaon white
3.17:1failpassfail
  • AA: use #4172dc as the text (4.5:1)
  • AAA: use #2252b9 as the text (7.06:1)
  • AA: or shift the background to #292929 (4.59:1)
Aaon black
6.63:1passpassfail
  • AAA: use #7196e5 as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #688fe3 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

#688fe3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #688fe3
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 #688fe3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/688fe3-9ca4c4-df6b4e-211f2d-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