Color

#151ec6

#151ec6
hex#151ec6
rgbrgb(21, 30, 198)
hslhsl(237, 81%, 43%)
oklchoklch(0.397 0.243 266.7)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0517

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c6be15

#1577c6 · #6515c6

#c6151e · #1ec615

Split-complementary

Open in tool →

#c66515 · #77c615

#c61577 · #c6be15 · #15c665

Contrast

#151ec6 as textRatioAAAA largeAAAFix
Aaon white
10.33:1passpasspassPasses AAA — no fix needed.
Aaon black
2.03:1failfailfail
  • AA: use #5d65ee as the text (4.56:1)
  • AAA: use #878cf2 as the text (7.06:1)
  • AA: or shift the background to #adadad (4.6:1)
  • AAA: or shift the background to #d6d6d6 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #151ec6 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

#151ec6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #151ec6
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 #151ec6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/151ec6-9f9cc4-df924e-251f2d-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