Color

#045fb4

#045fb4
hex#045fb4
rgbrgb(4, 95, 180)
hslhsl(209, 96%, 36%)
oklchoklch(0.489 0.154 254.1)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1151

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b45904

#04b4b1 · #0407b4

#b4045f · #5fb404

Split-complementary

Open in tool →

#b40407 · #b4b104

#b104b4 · #b45904 · #07b404

Contrast

#045fb4 as textRatioAAAA largeAAAFix
Aaon white
6.36:1passpassfail
  • AAA: use #0357a5 as the text (7.22:1)
Aaon black
3.3:1failpassfail
  • AA: use #0474dc as the text (4.54:1)
  • AAA: use #329afb as the text (7.15:1)
  • AA: or shift the background to #d9d9d9 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #045fb4 as the background.

Brands using this color

Fonts for this mood

#045fb4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #045fb4
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 #045fb4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/045fb4-9cacc4-df4e4e-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