Color

#37628b

#37628b
hex#37628b
rgbrgb(55, 98, 139)
hslhsl(209, 43%, 38%)
oklchoklch(0.484 0.082 248.8)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.1141

Colors that go with #37628b

Charcoal, Sienna 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 →

#8b6037

#378b89 · #37398b

#8b3762 · #628b37

Split-complementary

Open in tool →

#8b3739 · #8b8937

#89378b · #8b6037 · #398b37

Contrast

#37628b as textRatioAAAA largeAAAFix
Aaon white
6.4:1passpassfail
  • AAA: use #335b80 as the text (7.12:1)
Aaon black
3.28:1failpassfail
  • AA: use #447aab as the text (4.62:1)
  • AAA: use #6d9ac5 as the text (7.08:1)
  • AA: or shift the background to #d9d9d9 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37628b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#37628b reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37628b
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 #37628b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37628b-9cacc4-df4e4e-1f212d-e9f1f1?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