Color

#06374c

#06374c
hex#06374c
rgbrgb(6, 55, 76)
hslhsl(198, 85%, 16%)
oklchoklch(0.317 0.061 232.7)
Closest name: Nordic Noir (#003344)Relative luminance 0.0329

Colors that go with #06374c

Crimson, Royal Blue and Sienna lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4b1b06

#064b3e · #06144b

#4b0637 · #374b06

Split-complementary

Open in tool →

#4b0614 · #4b3e06

#3e064b · #4b1b06 · #144b06

Contrast

#06374c as textRatioAAAA largeAAAFix
Aaon white
12.66:1passpasspassPasses AAA — no fix needed.
Aaon black
1.66:1failfailfail
  • AA: use #0e7eaf as the text (4.62:1)
  • AAA: use #12a1de as the text (7.18:1)
  • AA: or shift the background to #9c9c9c (4.61:1)
  • AAA: or shift the background to #c2c2c2 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #06374c as the background.

Brands using this color

Fonts for this mood

#06374c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #06374c
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #06374c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/06374c-9cb3c4-df4e69-1f232d-e9f1f0?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