Color

#38455c

#38455c
hex#38455c
rgbrgb(56, 69, 92)
hslhsl(218, 24%, 29%)
oklchoklch(0.389 0.043 261.6)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.0587

Colors that go with #38455c

Sea Green, Teal and Sienna 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 →

#5c4f38

#38575c · #3d385c

#5c3845 · #455c38

Split-complementary

Open in tool →

#5c3d38 · #575c38

#5c3857 · #5c4f38 · #385c3d

Contrast

#38455c as textRatioAAAA largeAAAFix
Aaon white
9.66:1passpasspassPasses AAA — no fix needed.
Aaon black
2.17:1failfailfail
  • AA: use #5f759b as the text (4.5:1)
  • AAA: use #8798b5 as the text (7.19:1)
  • AA: or shift the background to #b3b3b3 (4.61:1)
  • AAA: or shift the background to #dedede (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #38455c as the background.

Brands using this color

Fonts for this mood

#38455c reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #38455c
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 #38455c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/38455c-9ca6c4-df644e-201f2d-e9f0f1?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