Color

#737eb5

#737eb5
hex#737eb5
rgbrgb(115, 126, 181)
hslhsl(230, 31%, 58%)
oklchoklch(0.606 0.085 274.9)
Closest name: Flood (#6677bb)Relative luminance 0.219

Colors that go with #737eb5

Charcoal, Copper 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 →

#b5aa73

#739fb5 · #8973b5

#b5737e · #7eb573

Split-complementary

Open in tool →

#b58973 · #9fb573

#b5739f · #b5aa73 · #73b589

Contrast

#737eb5 as textRatioAAAA largeAAAFix
Aaon white
3.9:1failpassfail
  • AA: use #6571ae as the text (4.64:1)
  • AAA: use #4a558c as the text (7.07:1)
  • AA: or shift the background to #171717 (4.59:1)
Aaon black
5.38:1passpassfail
  • AAA: use #8a93c1 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #737eb5 as the background.

Brands using this color

mcpConnect your agent — build around #737eb5
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 #737eb5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/737eb5-9c9ec4-df814e-231f2d-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