Color

#15423f

#15423f
hex#15423f
rgbrgb(21, 66, 63)
hslhsl(176, 52%, 17%)
oklchoklch(0.347 0.049 189)
Closest name: Botanical Night (#12403c)Relative luminance 0.0441

Colors that go with #15423f

Crimson, Sea Green and Teal 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#421518

#154228 · #152e42

#3f1542 · #423f15

Split-complementary

Open in tool →

#42152e · #422815

#281542 · #421518 · #2e4215

Contrast

#15423f as textRatioAAAA largeAAAFix
Aaon white
11.15:1passpasspassPasses AAA — no fix needed.
Aaon black
1.88:1failfailfail
  • AA: use #2a847e as the text (4.7:1)
  • AAA: use #35a79f as the text (7.18:1)
  • AA: or shift the background to #a6a6a6 (4.58:1)
  • AAA: or shift the background to #cfcfcf (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #15423f as the background.

Brands using this color

Fonts for this mood

#15423f reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15423f
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 #15423f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15423f-a2bdbe-d4599d-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