Color

#150d73

#150d73
hex#150d73
rgbrgb(21, 13, 115)
hslhsl(245, 80%, 25%)
oklchoklch(0.274 0.159 271.9)
Closest name: midnightblue (#191970)Relative luminance 0.0169

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6a730d

#0d3773 · #480d73

#73150d · #0d7315

Split-complementary

Open in tool →

#73480d · #37730d

#730d37 · #6a730d · #0d7348

Contrast

#150d73 as textRatioAAAA largeAAAFix
Aaon white
15.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #6e63ee as the text (4.68:1)
  • AAA: use #958cf2 as the text (7.31:1)
  • AA: or shift the background to #8a8a8a (4.55:1)
  • AAA: or shift the background to #b0b0b0 (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #150d73 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

#150d73 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #150d73
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 #150d73 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/150d73-a49cc4-dfa54e-261f2d-e9ecf1?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