Color

#0c3545

#0c3545
hex#0c3545
rgbrgb(12, 53, 69)
hslhsl(197, 70%, 16%)
oklchoklch(0.309 0.052 228.5)
Closest name: Nordic Noir (#003344)Relative luminance 0.0305

Tints & shades

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

Harmonies

Complementary

Open in tool →

#451c0c

#0c4539 · #0c1945

#450c35 · #35450c

Split-complementary

Open in tool →

#450c19 · #45390c

#390c45 · #451c0c · #19450c

Contrast

#0c3545 as textRatioAAAA largeAAAFix
Aaon white
13.04:1passpasspassPasses AAA — no fix needed.
Aaon black
1.61:1failfailfail
  • AA: use #1d7ea5 as the text (4.58:1)
  • AAA: use #25a0d0 as the text (7.02:1)
  • AA: or shift the background to #999999 (4.58:1)
  • AAA: or shift the background to #bfbfbf (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 #0c3545 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

#0c3545 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c3545
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 #0c3545 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c3545-9cb4c4-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