Color

#397aac

#397aac
hex#397aac
rgbrgb(57, 122, 172)
hslhsl(206, 50%, 45%)
oklchoklch(0.56 0.102 244.4)
Closest name: Blue Triumph (#4376ab)Relative luminance 0.1777

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ac6b39

#39aca4 · #3941ac

#ac397a · #7aac39

Split-complementary

Open in tool →

#ac3941 · #aca439

#a439ac · #ac6b39 · #41ac39

Contrast

#397aac as textRatioAAAA largeAAAFix
Aaon white
4.61:1passpassfail
  • AAA: use #2b5c82 as the text (7.1:1)
Aaon black
4.55:1passpassfail
  • AAA: use #5e9bc9 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #397aac 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

#397aac reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #397aac
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 #397aac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397aac-9caec4-df4e56-1f212d-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