Color

#04313e

#04313e
hex#04313e
rgbrgb(4, 49, 62)
hslhsl(193, 88%, 13%)
oklchoklch(0.291 0.051 222.6)
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 →

#3e1104

#043e2e · #04153e

#3e0432 · #323e04

Split-complementary

Open in tool →

#3e0415 · #3e2e04

#2e043e · #3e1104 · #153e04

Contrast

#04313e as textRatioAAAA largeAAAFix
Aaon white
13.87:1passpasspassPasses AAA — no fix needed.
Aaon black
1.51:1failfailfail
  • AA: use #0a82a3 as the text (4.73:1)
  • AAA: use #0da4ce as the text (7.22:1)
  • 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 #04313e 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

#04313e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04313e
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 #04313e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04313e-a2b5be-df4e75-1f242d-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