Color

#04518f

#04518f
hex#04518f
rgbrgb(4, 81, 143)
hslhsl(207, 95%, 29%)
oklchoklch(0.429 0.122 250.7)
Closest name: Blue Chip (#1d5699)Relative luminance 0.0789

Tints & shades

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

Harmonies

Complementary

Open in tool →

#904304

#049089 · #040b90

#900451 · #519004

Split-complementary

Open in tool →

#90040b · #908904

#890490 · #904304 · #0b9004

Contrast

#04518f as textRatioAAAA largeAAAFix
Aaon white
8.14:1passpasspassPasses AAA — no fix needed.
Aaon black
2.58:1failfailfail
  • AA: use #0578d6 as the text (4.66:1)
  • AAA: use #299cfa as the text (7.23:1)
  • AA: or shift the background to #c2c2c2 (4.57:1)
  • AAA: or shift the background to #f0f0f0 (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 #04518f 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

#04518f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04518f
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 #04518f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04518f-9cadc4-df4e53-1f212d-e9f1f1?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