Color

#04458b

#04458b
hex#04458b
rgbrgb(4, 69, 139)
hslhsl(211, 94%, 28%)
oklchoklch(0.398 0.131 255.7)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0615

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8b4a04

#04888b · #07048b

#8b0445 · #458b04

Split-complementary

Open in tool →

#8b0704 · #888b04

#8b0488 · #8b4a04 · #048b07

Contrast

#04458b as textRatioAAAA largeAAAFix
Aaon white
9.42:1passpasspassPasses AAA — no fix needed.
Aaon black
2.23:1failfailfail
  • AA: use #0772e4 as the text (4.54:1)
  • AAA: use #3e98f9 as the text (7.06:1)
  • AA: or shift the background to #b5b5b5 (4.59:1)
  • AAA: or shift the background to #dedede (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04458b 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

#04458b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04458b
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 #04458b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04458b-9cabc4-df534e-1f202d-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