Color

#515fc2

#515fc2
hex#515fc2
rgbrgb(81, 95, 194)
hslhsl(233, 48%, 54%)
oklchoklch(0.526 0.154 273.8)
Closest name: God of Rain (#4466cc)Relative luminance 0.1383

Colors that go with #515fc2

Charcoal, Sea Green and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c2b551

#5197c2 · #7d51c2

#c2515f · #5fc251

Split-complementary

Open in tool →

#c27d51 · #97c251

#c25197 · #c2b551 · #51c27d

Contrast

#515fc2 as textRatioAAAA largeAAAFix
Aaon white
5.58:1passpassfail
  • AAA: use #404db5 as the text (7.13:1)
Aaon black
3.77:1failpassfail
  • AA: use #6470c9 as the text (4.7:1)
  • AAA: use #8a93d6 as the text (7.23:1)
  • AA: or shift the background to #e8e8e8 (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 #515fc2 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

#515fc2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #515fc2
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #515fc2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/515fc2-9c9cc4-df884e-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