Color

#40314e

#40314e
hex#40314e
rgbrgb(64, 49, 78)
hslhsl(271, 23%, 25%)
oklchoklch(0.343 0.053 307.5)
Closest name: Call It a Night (#42364c)Relative luminance 0.0384

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f4e31

#32314e · #4e314e

#4e4031 · #314e40

Split-complementary

Open in tool →

#4e4e31 · #314e32

#4e3231 · #3f4e31 · #314e4e

Contrast

#40314e as textRatioAAAA largeAAAFix
Aaon white
11.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.77:1failfailfail
  • AA: use #8668a1 as the text (4.51:1)
  • AAA: use #a48eb8 as the text (7.14:1)
  • AA: or shift the background to #a1a1a1 (4.6:1)
  • AAA: or shift the background to #c7c7c7 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40314e 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

#40314e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40314e
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 #40314e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40314e-b59cc4-c7cb62-2c1f2d-eae9f1?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