Color

#375da4

#375da4
hex#375da4
rgbrgb(55, 93, 164)
hslhsl(219, 50%, 43%)
oklchoklch(0.487 0.122 261.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1132

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a47e37

#3794a4 · #4737a4

#a4375d · #5da437

Split-complementary

Open in tool →

#a44737 · #94a437

#a43794 · #a47e37 · #37a447

Contrast

#375da4 as textRatioAAAA largeAAAFix
Aaon white
6.43:1passpassfail
  • AAA: use #335799 as the text (7.08:1)
Aaon black
3.26:1failpassfail
  • AA: use #4b75c3 as the text (4.63:1)
  • AAA: use #7998d2 as the text (7.23:1)
  • AA: or shift the background to #d9d9d9 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #375da4 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

#375da4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #375da4
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #375da4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/375da4-9ca5c4-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