Color

#04303e

#04303e
hex#04303e
rgbrgb(4, 48, 62)
hslhsl(194, 88%, 13%)
oklchoklch(0.288 0.051 224.8)
Closest name: Nordic Noir (#003344)Relative luminance 0.0249

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e1204

#043e2f · #04143e

#3e0431 · #313e04

Split-complementary

Open in tool →

#3e0414 · #3e2f04

#2f043e · #3e1204 · #143e04

Contrast

#04303e as textRatioAAAA largeAAAFix
Aaon white
14.02:1passpasspassPasses AAA — no fix needed.
Aaon black
1.5:1failfailfail
  • AA: use #0a7fa3 as the text (4.58:1)
  • AAA: use #0da1ce as the text (7.01:1)
  • AA: or shift the background to #949494 (4.62:1)
  • AAA: or shift the background to #b8b8b8 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04303e 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

#04303e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04303e
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 #04303e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04303e-9cb6c4-df4e72-1f242d-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