Color

#516ec2

#516ec2
hex#516ec2
rgbrgb(81, 110, 194)
hslhsl(225, 48%, 54%)
oklchoklch(0.557 0.135 267.6)
Closest name: Loch Ness (#5f6db0)Relative luminance 0.168

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c2a651

#51a6c2 · #6e51c2

#c2516e · #6ec251

Split-complementary

Open in tool →

#c26e51 · #a6c251

#c251a6 · #c2a651 · #51c26e

Contrast

#516ec2 as textRatioAAAA largeAAAFix
Aaon white
4.82:1passpassfail
  • AAA: use #3953a2 as the text (7.16:1)
Aaon black
4.36:1failpassfail
  • AA: use #5571c3 as the text (4.54:1)
  • AAA: use #7f93d2 as the text (7.01:1)
  • AA: or shift the background to #fafafa (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516ec2 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

#516ec2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #516ec2
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 #516ec2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516ec2-9ca1c4-df754e-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