Color

#515ed2

#515ed2
hex#515ed2
rgbrgb(81, 94, 210)
hslhsl(234, 59%, 57%)
oklchoklch(0.536 0.177 274)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1441

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d2c551

#519ed2 · #8451d2

#d2515e · #5ed251

Split-complementary

Open in tool →

#d28451 · #9ed251

#d2519e · #d2c551 · #51d284

Contrast

#515ed2 as textRatioAAAA largeAAAFix
Aaon white
5.41:1passpassfail
  • AAA: use #3847cc as the text (7.14:1)
Aaon black
3.88:1failpassfail
  • AA: use #616dd6 as the text (4.67:1)
  • AAA: use #8992e1 as the text (7.26:1)
  • AA: or shift the background to #ebebeb (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #515ed2 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

#515ed2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #515ed2
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 #515ed2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/515ed2-9d9cc4-df8a4e-241f2d-e9eef1?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