Color

#233d4d

#233d4d
hex#233d4d
rgbrgb(35, 61, 77)
hslhsl(203, 37%, 22%)
oklchoklch(0.346 0.043 236.8)
Closest name: Cold and Dark (#154250)Relative luminance 0.0423

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4d3323

#234d48 · #23284d

#4d233d · #3d4d23

Split-complementary

Open in tool →

#4d2328 · #4d4823

#48234d · #4d3323 · #284d23

Contrast

#233d4d as textRatioAAAA largeAAAFix
Aaon white
11.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.85:1failfailfail
  • AA: use #477a9a as the text (4.52:1)
  • AAA: use #6c9dbc as the text (7.19:1)
  • AA: or shift the background to #a3a3a3 (4.51:1)
  • AAA: or shift the background to #cccccc (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #233d4d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#233d4d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #233d4d
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 #233d4d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/233d4d-9cb0c4-df4e5d-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