Color

#00346b

#00346b
hex#00346b
rgbrgb(0, 52, 107)
hslhsl(211, 100%, 21%)
oklchoklch(0.33 0.108 254.9)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0352

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6b3700

#00696b · #02006b

#6b0034 · #346b00

Split-complementary

Open in tool →

#6b0200 · #696b00

#6b0069 · #6b3700 · #006b02

Contrast

#00346b as textRatioAAAA largeAAAFix
Aaon white
12.33:1passpasspassPasses AAA — no fix needed.
Aaon black
1.7:1failfailfail
  • AA: use #0071eb as the text (4.56:1)
  • AAA: use #3898ff as the text (7.1:1)
  • AA: or shift the background to #9e9e9e (4.6:1)
  • AAA: or shift the background to #c4c4c4 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #00346b 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

#00346b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #00346b
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 #00346b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/00346b-9cabc4-df534e-1f202d-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