Color

#2d688b

#2d688b
hex#2d688b
rgbrgb(45, 104, 139)
hslhsl(202, 51%, 36%)
oklchoklch(0.494 0.083 237.8)
Closest name: Chill of the Night (#256d8d)Relative luminance 0.1232

Colors that go with #2d688b

Charcoal, Royal Blue 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 →

#8b4f2d

#2d8b7e · #2d398b

#8b2d68 · #688b2d

Split-complementary

Open in tool →

#8b2d39 · #8b7e2d

#7e2d8b · #8b4f2d · #398b2d

Contrast

#2d688b as textRatioAAAA largeAAAFix
Aaon white
6.06:1passpassfail
  • AAA: use #285d7b as the text (7.14:1)
Aaon black
3.46:1failpassfail
  • AA: use #367da6 as the text (4.64:1)
  • AAA: use #569ec8 as the text (7.12:1)
  • AA: or shift the background to #dedede (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d688b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2d688b reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d688b
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 #2d688b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d688b-9cb1c4-df4e5f-1f222d-e9f1f0?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