Color

#150aeb

#150aeb
hex#150aeb
rgbrgb(21, 10, 235)
hslhsl(243, 92%, 48%)
oklchoklch(0.432 0.289 266)
Closest name: Burning Ultrablue (#150aec)Relative luminance 0.0637

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e0eb0a

#0a6feb · #860aeb

#eb150a · #0aeb15

Split-complementary

Open in tool →

#eb860a · #6feb0a

#eb0a6f · #e0eb0a · #0aeb86

Contrast

#150aeb as textRatioAAAA largeAAAFix
Aaon white
9.23:1passpasspassPasses AAA — no fix needed.
Aaon black
2.27:1failfailfail
  • AA: use #6a62f8 as the text (4.72:1)
  • AAA: use #8f89fa as the text (7.13:1)
  • AA: or shift the background to #b5b5b5 (4.5:1)
  • AAA: or shift the background to #e3e3e3 (7.19:1)

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

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/150aeb-a39cc4-dfa04e-261f2d-e9edf1?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