Color

#376fd7

#376fd7
hex#376fd7
rgbrgb(55, 111, 215)
hslhsl(219, 67%, 53%)
oklchoklch(0.561 0.171 261.4)
Closest name: Royal Blue (#4169e1)Relative luminance 0.1709

Colors that go with #376fd7

Charcoal, Sea Green 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 →

#d79f37

#37bfd7 · #4f37d7

#d7376f · #6fd737

Split-complementary

Open in tool →

#d74f37 · #bfd737

#d737bf · #d79f37 · #37d74f

Contrast

#376fd7 as textRatioAAAA largeAAAFix
Aaon white
4.75:1passpassfail
  • AAA: use #2354af as the text (7.1:1)
Aaon black
4.42:1failpassfail
  • AA: use #3b72d8 as the text (4.58:1)
  • AAA: use #6e97e2 as the text (7.19:1)
  • AA: or shift the background to #fafafa (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #376fd7 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

#376fd7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #376fd7
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 #376fd7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/376fd7-9ca5c4-df664e-211f2d-e9f0f1?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