Color

#09397b

#09397b
hex#09397b
rgbrgb(9, 57, 123)
hslhsl(215, 86%, 26%)
oklchoklch(0.357 0.123 258.4)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0441

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7b4c09

#09727b · #13097b

#7b0939 · #397b09

Split-complementary

Open in tool →

#7b1309 · #727b09

#7b0972 · #7b4c09 · #097b13

Contrast

#09397b as textRatioAAAA largeAAAFix
Aaon white
11.15:1passpasspassPasses AAA — no fix needed.
Aaon black
1.88:1failfailfail
  • AA: use #1770ee as the text (4.59:1)
  • AAA: use #5496f2 as the text (7.02:1)
  • AA: or shift the background to #a6a6a6 (4.58:1)
  • AAA: or shift the background to #cfcfcf (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #09397b 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

#09397b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #09397b
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 #09397b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/09397b-9ca8c4-df5d4e-201f2d-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