Color

#10423e

#10423e
hex#10423e
rgbrgb(16, 66, 62)
hslhsl(175, 61%, 16%)
oklchoklch(0.345 0.052 187.4)
Closest name: Botanical Night (#12403c)Relative luminance 0.0435

Tints & shades

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

Harmonies

Complementary

Open in tool →

#421014

#104225 · #102d42

#3e1042 · #423e10

Split-complementary

Open in tool →

#42102d · #422510

#251042 · #421014 · #2d4210

Contrast

#10423e as textRatioAAAA largeAAAFix
Aaon white
11.22:1passpasspassPasses AAA — no fix needed.
Aaon black
1.87:1failfailfail
  • AA: use #20837b as the text (4.59:1)
  • AAA: use #29a89e as the text (7.19:1)
  • AA: or shift the background to #a6a6a6 (4.61:1)
  • AAA: or shift the background to #cfcfcf (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 #10423e as the background.

Brands using this color

Fonts for this mood

#10423e reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10423e
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 #10423e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10423e-a2bdbe-d4599f-1f282d-e9f1ed?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