Color

#999ff5

#999ff5
hex#999ff5
rgbrgb(153, 159, 245)
hslhsl(236, 82%, 78%)
oklchoklch(0.732 0.124 279.8)
Closest name: Cold Lips (#9ba0ef)Relative luminance 0.3816

Colors that go with #999ff5

Charcoal, Deep Sky Blue and Goldenrod lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f5ef99

#99cdf5 · #c199f5

#f5999f · #9ff599

Split-complementary

Open in tool →

#f5c199 · #cdf599

#f599cd · #f5ef99 · #99f5c1

Contrast

#999ff5 as textRatioAAAA largeAAAFix
Aaon white
2.43:1failfailfail
  • AA: use #5d66ef as the text (4.55:1)
  • AAA: use #2e3bea as the text (7.17:1)
  • AA: or shift the background to #3b3b3b (4.6:1)
  • AAA: or shift the background to #1c1c1c (7.01:1)
Aaon black
8.63:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #999ff5 as the background.

Brands using this color

Fonts for this mood

#999ff5 reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #999ff5
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #999ff5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/999ff5-9e9cc4-df8f4e-241f2d-e9eef1?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