Color

#507de7

#507de7
hex#507de7
rgbrgb(80, 125, 231)
hslhsl(222, 76%, 61%)
oklchoklch(0.611 0.168 264.6)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2214

Colors that go with #507de7

Charcoal, Crimson and Copper 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 →

#e7ba50

#50c9e7 · #6e50e7

#e7507d · #7de750

Split-complementary

Open in tool →

#e76e50 · #c9e750

#e750c9 · #e7ba50 · #50e76e

Contrast

#507de7 as textRatioAAAA largeAAAFix
Aaon white
3.87:1failpassfail
  • AA: use #3e70e5 as the text (4.51:1)
  • AAA: use #1b4ec5 as the text (7.14:1)
  • AA: or shift the background to #171717 (4.63:1)
Aaon black
5.43:1passpassfail
  • AAA: use #6f95eb as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #507de7 as the background.

Brands using this color

Fonts for this mood

#507de7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #507de7
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 #507de7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/507de7-9ca3c4-df6e4e-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