Color

#375da9

#375da9
hex#375da9
rgbrgb(55, 93, 169)
hslhsl(220, 51%, 44%)
oklchoklch(0.49 0.129 262.6)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1151

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a98337

#3796a9 · #4a37a9

#a9375d · #5da937

Split-complementary

Open in tool →

#a94a37 · #96a937

#a93796 · #a98337 · #37a94a

Contrast

#375da9 as textRatioAAAA largeAAAFix
Aaon white
6.36:1passpassfail
  • AAA: use #33579e as the text (7.01:1)
Aaon black
3.3:1failpassfail
  • AA: use #4a73c4 as the text (4.54:1)
  • AAA: use #7897d3 as the text (7.17:1)
  • AA: or shift the background to #d9d9d9 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #375da9 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

#375da9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #375da9
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 #375da9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/375da9-9ca5c4-df694e-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