Color

#405aba

#405aba
hex#405aba
rgbrgb(64, 90, 186)
hslhsl(227, 49%, 49%)
oklchoklch(0.501 0.154 268.8)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1195

Tints & shades

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

Harmonies

Complementary

Open in tool →

#baa040

#4097ba · #6240ba

#ba405a · #5aba40

Split-complementary

Open in tool →

#ba6240 · #97ba40

#ba4097 · #baa040 · #40ba62

Contrast

#405aba as textRatioAAAA largeAAAFix
Aaon white
6.2:1passpassfail
  • AAA: use #3951a7 as the text (7.22:1)
Aaon black
3.39:1failpassfail
  • AA: use #5870c6 as the text (4.55:1)
  • AAA: use #8293d4 as the text (7.07:1)
  • AA: or shift the background to #dedede (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #405aba as the background.

Brands using this color

Fonts for this mood

#405aba reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #405aba
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 #405aba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/405aba-9ca0c4-df7a4e-221f2d-e9eff1?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