Color

#0a3042

#0a3042
hex#0a3042
rgbrgb(10, 48, 66)
hslhsl(199, 74%, 15%)
oklchoklch(0.293 0.053 233.6)
Closest name: Nordic Noir (#003344)Relative luminance 0.0257

Tints & shades

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

Harmonies

Complementary

Open in tool →

#431c0a

#0a4338 · #0a1443

#430a31 · #31430a

Split-complementary

Open in tool →

#430a14 · #43380a

#380a43 · #431c0a · #14430a

Contrast

#0a3042 as textRatioAAAA largeAAAFix
Aaon white
13.87:1passpasspassPasses AAA — no fix needed.
Aaon black
1.51:1failfailfail
  • AA: use #1a7ead as the text (4.63:1)
  • AAA: use #209fd9 as the text (7.02:1)
  • AA: or shift the background to #949494 (4.57:1)
  • AAA: or shift the background to #bababa (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a3042 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

#0a3042 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a3042
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 #0a3042 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a3042-9cb3c4-df4e66-1f232d-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