Color

#423b4e

#423b4e
hex#423b4e
rgbrgb(66, 59, 78)
hslhsl(262, 14%, 27%)
oklchoklch(0.367 0.033 301.6)
Closest name: Call It a Night (#42364c)Relative luminance 0.0484

Tints & shades

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

Harmonies

Complementary

Open in tool →

#474e3b

#3b3e4e · #4c3b4e

#4e423b · #3b4e42

Split-complementary

Open in tool →

#4e4c3b · #3e4e3b

#4e3b3e · #474e3b · #3b4e4c

Contrast

#423b4e as textRatioAAAA largeAAAFix
Aaon white
10.67:1passpasspassPasses AAA — no fix needed.
Aaon black
1.97:1failfailfail
  • AA: use #7d7194 as the text (4.66:1)
  • AAA: use #9a91ac as the text (7.02:1)
  • AA: or shift the background to #ababab (4.65:1)
  • AAA: or shift the background to #d4d4d4 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #423b4e 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

#423b4e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #423b4e
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 #423b4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/423b4e-af9cc4-dfce4e-2a1f2d-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