Color

#90378c

#90378c
hex#90378c
rgbrgb(144, 55, 140)
hslhsl(303, 45%, 39%)
oklchoklch(0.493 0.159 329.5)
Closest name: Noble Plum (#871f78)Relative luminance 0.1056

Colors that go with #90378c

Sea Green, Denim and Charcoal 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 →

#37903b

#683790 · #90375f

#8c9037 · #378c90

Split-complementary

Open in tool →

#5f9037 · #379068

#906837 · #37903b · #375f90

Contrast

#90378c as textRatioAAAA largeAAAFix
Aaon white
6.75:1passpassfail
  • AAA: use #8d3588 as the text (7.01:1)
Aaon black
3.11:1failpassfail
  • AA: use #b946b3 as the text (4.59:1)
  • AAA: use #cd7ac8 as the text (7.21:1)
  • AA: or shift the background to #d4d4d4 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #90378c 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

#90378c reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #90378c
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 #90378c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/90378c-c19fbb-8fcb62-2d1f26-eee9f1?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