Color

#5375ee

#5375ee
hex#5375ee
rgbrgb(83, 117, 238)
hslhsl(227, 82%, 63%)
oklchoklch(0.601 0.186 268.5)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2073

Colors that go with #5375ee

Charcoal, Crimson and Sea Green 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 →

#eecc53

#53c2ee · #7f53ee

#ee5375 · #75ee53

Split-complementary

Open in tool →

#ee7f53 · #c2ee53

#ee53c2 · #eecc53 · #53ee7f

Contrast

#5375ee as textRatioAAAA largeAAAFix
Aaon white
4.08:1failpassfail
  • AA: use #456aed as the text (4.63:1)
  • AAA: use #1643e3 as the text (7.13:1)
  • AA: or shift the background to #141414 (4.52:1)
Aaon black
5.15:1passpassfail
  • AAA: use #7893f2 as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5375ee 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

#5375ee reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5375ee
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 #5375ee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5375ee-9ca0c4-df7a4e-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