Color

#04458f

#04458f
hex#04458f
rgbrgb(4, 69, 143)
hslhsl(212, 95%, 29%)
oklchoklch(0.401 0.136 256.6)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0627

Tints & shades

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

Harmonies

Complementary

Open in tool →

#904f04

#048c90 · #080490

#900445 · #459004

Split-complementary

Open in tool →

#900804 · #8c9004

#90048c · #904f04 · #049008

Contrast

#04458f as textRatioAAAA largeAAAFix
Aaon white
9.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.25:1failfailfail
  • AA: use #0670ea as the text (4.51:1)
  • AAA: use #4298fa as the text (7.1:1)
  • AA: or shift the background to #b5b5b5 (4.55:1)
  • AAA: or shift the background to #e0e0e0 (7.06:1)

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

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

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

tool url/palettes/new/04458f-9caac4-df564e-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