Color

#26313b

#26313b
hex#26313b
rgbrgb(38, 49, 59)
hslhsl(209, 22%, 19%)
oklchoklch(0.307 0.024 246.1)
Closest name: Nightmare Fuel (#293135)Relative luminance 0.0292

Colors that go with #26313b

Amber, Blue and Blush Pink 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 →

#3b3026

#263b3b · #26263b

#3b2631 · #313b26

Split-complementary

Open in tool →

#3b2626 · #3b3b26

#3b263b · #3b3026 · #263b26

Contrast

#26313b as textRatioAAAA largeAAAFix
Aaon white
13.25:1passpasspassPasses AAA — no fix needed.
Aaon black
1.58:1failfailfail
  • AA: use #5d7992 as the text (4.62:1)
  • AAA: use #839aaf as the text (7.21:1)
  • AA: or shift the background to #999999 (4.65:1)
  • AAA: or shift the background to #bdbdbd (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #26313b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#26313b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #26313b
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 #26313b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/26313b-9cacc4-df4e4e-1f212d-e9f1f1?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