Color

#403a82

#403a82
hex#403a82
rgbrgb(64, 58, 130)
hslhsl(245, 38%, 37%)
oklchoklch(0.395 0.117 283.4)
Closest name: Evening Magic (#363e7d)Relative luminance 0.0573

Colors that go with #403a82

Midnight Blue, Powder Blue and Dark Olive Green 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.

Real palettes that use #403a82

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7c823a

#3a5882 · #643a82

#82403a · #3a8240

Split-complementary

Open in tool →

#82643a · #58823a

#823a58 · #7c823a · #3a8264

Contrast

#403a82 as textRatioAAAA largeAAAFix
Aaon white
9.79:1passpasspassPasses AAA — no fix needed.
Aaon black
2.15:1failfailfail
  • AA: use #726bbd as the text (4.55:1)
  • AAA: use #948ecc as the text (7:1)
  • AA: or shift the background to #b0b0b0 (4.51:1)
  • AAA: or shift the background to #dbdbdb (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #403a82 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

#403a82 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #403a82
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 #403a82 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/403a82-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