Color

#40384c

#40384c
hex#40384c
rgbrgb(64, 56, 76)
hslhsl(264, 15%, 26%)
oklchoklch(0.357 0.036 302.9)
Closest name: Call It a Night (#42364c)Relative luminance 0.0444

Tints & shades

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

Harmonies

Complementary

Open in tool →

#444c38

#383a4c · #4a384c

#4c4038 · #384c40

Split-complementary

Open in tool →

#4c4a38 · #3a4c38

#4c383a · #444c38 · #384c4a

Contrast

#40384c as textRatioAAAA largeAAAFix
Aaon white
11.12:1passpasspassPasses AAA — no fix needed.
Aaon black
1.89:1failfailfail
  • AA: use #7e6f95 as the text (4.59:1)
  • AAA: use #9e92af as the text (7.18:1)
  • AA: or shift the background to #a6a6a6 (4.57:1)
  • AAA: or shift the background to #cfcfcf (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40384c 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

#40384c reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40384c
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 #40384c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40384c-b19cc4-dfd34e-2b1f2d-e9eaf1?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