Color

#03394e

#03394e
hex#03394e
rgbrgb(3, 57, 78)
hslhsl(197, 93%, 16%)
oklchoklch(0.324 0.063 231)
Closest name: Nordic Noir (#003344)Relative luminance 0.035

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4f1803

#034f3e · #03134f

#4f0339 · #394f03

Split-complementary

Open in tool →

#4f0313 · #4f3e03

#3e034f · #4f1803 · #134f03

Contrast

#03394e as textRatioAAAA largeAAAFix
Aaon white
12.36:1passpasspassPasses AAA — no fix needed.
Aaon black
1.7:1failfailfail
  • AA: use #067dac as the text (4.54:1)
  • AAA: use #08a1dd as the text (7.15:1)
  • AA: or shift the background to #9c9c9c (4.5:1)
  • AAA: or shift the background to #c4c4c4 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03394e 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

#03394e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03394e
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 #03394e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03394e-9cb4c4-df4e6b-1f232d-e9f1ef?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