Color

#042d3e

#042d3e
hex#042d3e
rgbrgb(4, 45, 62)
hslhsl(198, 88%, 13%)
oklchoklch(0.279 0.053 231.2)
Closest name: Nordic Noir (#003344)Relative luminance 0.0225

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e1504

#043e33 · #04103e

#3e042d · #2d3e04

Split-complementary

Open in tool →

#3e0410 · #3e3304

#33043e · #3e1504 · #103e04

Contrast

#042d3e as textRatioAAAA largeAAAFix
Aaon white
14.48:1passpasspassPasses AAA — no fix needed.
Aaon black
1.45:1failfailfail
  • AA: use #0b7cad as the text (4.5:1)
  • AAA: use #0e9fdd as the text (7.02:1)
  • AA: or shift the background to #919191 (4.59:1)
  • AAA: or shift the background to #b5b5b5 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #042d3e 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

#042d3e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #042d3e
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 #042d3e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/042d3e-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