Color

#375f81

#375f81
hex#375f81
rgbrgb(55, 95, 129)
hslhsl(208, 40%, 36%)
oklchoklch(0.471 0.072 245.7)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.1058

Tints & shades

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

Harmonies

Complementary

Open in tool →

#815937

#37817e · #373a81

#81375e · #5e8137

Split-complementary

Open in tool →

#81373a · #817e37

#7e3781 · #815937 · #3a8137

Contrast

#375f81 as textRatioAAAA largeAAAFix
Aaon white
6.74:1passpassfail
  • AAA: use #365c7d as the text (7.04:1)
Aaon black
3.12:1failpassfail
  • AA: use #487ba8 as the text (4.67:1)
  • AAA: use #709cc2 as the text (7.22:1)
  • AA: or shift the background to #d4d4d4 (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 #375f81 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

#375f81 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #375f81
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 #375f81 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/375f81-9cadc4-df4e51-1f212d-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