Color

#373e76

#373e76
hex#373e76
rgbrgb(55, 62, 118)
hslhsl(233, 36%, 34%)
oklchoklch(0.387 0.095 275.7)
Closest name: Evening Magic (#363e7d)Relative luminance 0.0557

Colors that go with #373e76

Steel Blue, Blue and Crimson 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 →

#766f37

#375e76 · #4f3776

#76373f · #3f7637

Split-complementary

Open in tool →

#764f37 · #5e7637

#76375e · #766f37 · #37764f

Contrast

#373e76 as textRatioAAAA largeAAAFix
Aaon white
9.94:1passpasspassPasses AAA — no fix needed.
Aaon black
2.11:1failfailfail
  • AA: use #6670b7 as the text (4.57:1)
  • AAA: use #8d94c9 as the text (7.21:1)
  • AA: or shift the background to #b0b0b0 (4.58:1)
  • AAA: or shift the background to #d9d9d9 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #373e76 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

#373e76 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #373e76
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 #373e76 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/373e76-9c9cc4-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