Color

#04577b

#04577b
hex#04577b
rgbrgb(4, 87, 123)
hslhsl(198, 94%, 25%)
oklchoklch(0.432 0.091 235.7)
Closest name: Beyond the Sea (#005784)Relative luminance 0.0827

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7c2804

#047c64 · #041c7c

#7c0458 · #587c04

Split-complementary

Open in tool →

#7c041c · #7c6404

#64047c · #7c2804 · #1c7c04

Contrast

#04577b as textRatioAAAA largeAAAFix
Aaon white
7.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.65:1failfailfail
  • AA: use #067eb2 as the text (4.63:1)
  • AAA: use #07a1e4 as the text (7.23:1)
  • AA: or shift the background to #c4c4c4 (4.54:1)
  • AAA: or shift the background to #f2f2f2 (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 #04577b 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

#04577b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04577b
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 #04577b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04577b-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